College Board SAT Exam Actual Questions
Scholastic Aptitude Test Exam (Page 19 )

Updated On: 30-Jul-2026

The following two passages deal with the political movements working for the woman's vote in America. Passage 1 -The first organized assertion of woman's rights in the United States was made at the Seneca Falls convention in 1848. The convention, though, had little immediate impact because of the national issues that would soon embroil the country. The contentious debates involving slavery and state's rights that preceded the Civil War soon took center stage in national debates. Thus woman's rights issues would have to wait until the war and its antecedent problems had been addressed before they would be addressed. In 1869, two organizations were formed that would play important roles in securing the woman's right to vote. The first was the American Woman's Suffrage Association (AWSA). Leaving federal and constitutional issues aside, the AWSA focused their attention on state-level politics. They also restricted their ambitions to securing the woman's vote and downplayed discussion of women's full equality. Taking a different track, the National Woman's Suffrage Association (NWSA), led by Elizabeth Stanton and Susan B. Anthony, believed that the only way to assure the long-term security of the woman's vote was to ground it in the constitution. The NWSA challenged the exclusion of woman from the Fifteenth Amendment, the amendment that extended the vote to African-American men. Furthermore, the NWSA linked the fight for suffrage with other inequalities faced by woman, such as marriage laws, which greatly disadvantaged women. By the late 1880s the differences that separated the two organizations had receded in importance as the women's movement had become a substantial and broad-based political force in the country. In 1890, the two organizations joined forces under the title of the National American Woman's Suffrage Association (NAWSA). The NAWSA would go on to play a vital role in the further fight to achieve the woman's vote. Passage 2 -In 1920, when Tennessee became the thirty-eighth state to approve the constitutional amendment securing the woman's right to vote, woman's suffrage became enshrined in the constitution. But woman's suffrage did not happen in one fell swoop. The success of the woman's suffrage movement was the story of a number of partial victories that led to the explicit endorsement of the woman's right to vote in the constitution. As early as the 1870s and 1880s, women had begun to win the right to vote in local affairs such as municipal elections, school board elections, or prohibition measures. These `partial suffrages` demonstrated that women could in fact responsibly and reasonably participate in a representative democracy (at least as voters). Once such successes were achieved and maintained over a period of time, restricting the full voting rights of woman became more and more suspect. If women were helping decide who was on the local school board, why should they not also have a voice in deciding who was president of the country? Such questions became more difficult for non-suffragists to answer, and thus the logic of restricting the woman's vote began to crumble. The author of the second passage argues that the `partial suffrages` were most effective in bringing full voting rights for woman because:

  1. through them woman were able to elect prosuffrage representatives.
  2. they showed women voting ably.
  3. they demonstrated that woman could participate in a full democracy.
  4. they demonstrated that woman could handle the intricacies of foreign policy.
  5. they established the power of the woman voter.

Answer(s): B

Explanation:

The passage explains that “partial suffrages” demonstrated women could responsibly and reasonably participate in a representative democracy, which directly aligns with option B stating they “showed women voting ably.” Options A, C, D, and E introduce ideas not mentioned in the text (electing pro-suffrage representatives, full-democracy participation, foreign-policy competence, or establishing voter power), so they are unsupported and therefore incorrect.
References https://www.archives.gov/education/lessons/womens-suffrage https://www.senecafalls.org/history



The following two passages deal with the political movements working for the woman's vote in America. Passage 1 -The first organized assertion of woman's rights in the United States was made at the Seneca Falls convention in 1848. The convention, though, had little immediate impact because of the national issues that would soon embroil the country. The contentious debates involving slavery and state's rights that preceded the Civil War soon took center stage in national debates. Thus woman's rights issues would have to wait until the war and its antecedent problems had been addressed before they would be addressed. In 1869, two organizations were formed that would play important roles in securing the woman's right to vote. The first was the American Woman's Suffrage Association (AWSA). Leaving federal and constitutional issues aside, the AWSA focused their attention on state-level politics. They also restricted their ambitions to securing the woman's vote and downplayed discussion of women's full equality. Taking a different track, the National Woman's Suffrage Association (NWSA), led by Elizabeth Stanton and Susan B. Anthony, believed that the only way to assure the long-term security of the woman's vote was to ground it in the constitution. The NWSA challenged the exclusion of woman from the Fifteenth Amendment, the amendment that extended the vote to African-American men. Furthermore, the NWSA linked the fight for suffrage with other inequalities faced by woman, such as marriage laws, which greatly disadvantaged women. By the late 1880s the differences that separated the two organizations had receded in importance as the women's movement had become a substantial and broad-based political force in the country. In 1890, the two organizations joined forces under the title of the National American Woman's Suffrage Association (NAWSA). The NAWSA would go on to play a vital role in the further fight to achieve the woman's vote. Passage 2 -In 1920, when Tennessee became the thirty-eighth state to approve the constitutional amendment securing the woman's right to vote, woman's suffrage became enshrined in the constitution. But woman's suffrage did not happen in one fell swoop. The success of the woman's suffrage movement was the story of a number of partial victories that led to the explicit endorsement of the woman's right to vote in the constitution. As early as the 1870s and 1880s, women had begun to win the right to vote in local affairs such as municipal elections, school board elections, or prohibition measures. These `partial suffrages` demonstrated that women could in fact responsibly and reasonably participate in a representative democracy (at least as voters). Once such successes were achieved and maintained over a period of time, restricting the full voting rights of woman became more and more suspect. If women were helping decide who was on the local school board, why should they not also have a voice in deciding who was president of the country? Such questions became more difficult for non-suffragists to answer, and thus the logic of restricting the woman's vote began to crumble.
Which of the following questions is NOT addressed in either passage?

  1. When did the woman's right to vote become a constitutional amendment?
  2. What effect did the Civil War have on the woman's suffrage movement?
  3. What are the names of two leaders of the National Woman's Suffrage Association?
  4. What are partial suffrages?
  5. Which constitutional amendment gave women the vote?

Answer(s): E

Explanation:

Justification
Option E – “Which constitutional amendment gave women the vote?” The passages never name the specific amendment that enfranchised women. They only refer generically to “the constitutional amendment securing the woman’s right to vote” and to the Fifteenth Amendment in the context of African-American men. No explicit identification (e.g., the Nineteenth Amendment) is provided, so the question is not answered in either text.
Option A – “When did the woman’s right to vote become a constitutional amendment?” Passage 2 states that Tennessee’s ratification in 1920 made the amendment part of the Constitution, directly answering the timing question.
Option B – “What effect did the Civil War have on the woman’s suffrage movement?” Passage 1 explains that the Civil War and its associated debates “took center stage” and delayed women’s-rights issues until after the war, thereby addressing the war’s impact.
Option C – “What are the names of two leaders of the National Woman’s Suffrage Association?” Passage 1 explicitly names Elizabeth Stanton and Susan B. Anthony as leaders of the NWSA.
Option D – “What are partial suffrages?” Passage 2 defines “partial suffrages” as limited voting rights women obtained in the 1870s-1880s for local matters such as municipal, school-board, or prohibition elections.
Since only option E lacks a direct answer in the supplied passages, it is the correct choice for the “NOT addressed” question.


Reference:

National Archives – The 19th Amendment ( https://www.archives.gov/education/lessons/19th-amendment ) Library of Congress – Women’s Suffrage: The Road to the 19th Amendment ( https://www.loc.gov/collections/womens-suffrage/ )



The following two passages deal with the political movements working for the woman's vote in America. Passage 1 -The first organized assertion of woman's rights in the United States was made at the Seneca Falls convention in 1848. The convention, though, had little immediate impact because of the national issues that would soon embroil the country. The contentious debates involving slavery and state's rights that preceded the Civil War soon took center stage in national debates. Thus woman's rights issues would have to wait until the war and its antecedent problems had been addressed before they would be addressed. In 1869, two organizations were formed that would play important roles in securing the woman's right to vote. The first was the American Woman's Suffrage Association (AWSA). Leaving federal and constitutional issues aside, the AWSA focused their attention on state-level politics. They also restricted their ambitions to securing the woman's vote and downplayed discussion of women's full equality. Taking a different track, the National Woman's Suffrage Association (NWSA), led by Elizabeth Stanton and Susan B. Anthony, believed that the only way to assure the long-term security of the woman's vote was to ground it in the constitution. The NWSA challenged the exclusion of woman from the
Fifteenth Amendment, the amendment that extended the vote to African-American men. Furthermore, the NWSA linked the fight for suffrage with other inequalities faced by woman, such as marriage laws, which greatly disadvantaged women. By the late 1880s the differences that separated the two organizations had receded in importance as the women's movement had become a substantial and broad-based political force in the country. In 1890, the two organizations joined forces under the title of the National American Woman's Suffrage Association (NAWSA). The NAWSA would go on to play a vital role in the further fight to achieve the woman's vote. Passage 2 -In 1920, when Tennessee became the thirty-eighth state to approve the constitutional amendment securing the woman's right to vote, woman's suffrage became enshrined in the constitution. But woman's suffrage did not happen in one fell swoop. The success of the woman's suffrage movement was the story of a number of partial victories that led to the explicit endorsement of the woman's right to vote in the constitution. As early as the 1870s and 1880s, women had begun to win the right to vote in local affairs such as municipal elections, school board elections, or prohibition measures. These `partial suffrages` demonstrated that women could in fact responsibly and reasonably participate in a representative democracy (at least as voters). Once such successes were achieved and maintained over a period of time, restricting the full voting rights of woman became more and more suspect. If women were helping decide who was on the local school board, why should they not also have a voice in deciding who was president of the country? Such questions became more difficult for non-suffragists to answer, and thus the logic of restricting the woman's vote began to crumble. The author of the second passage would most likely see the work of the:

  1. AWSA as crucial for the ultimate success of the suffrage movement.
  2. NWSA as indispensable for partial suffrages.
  3. NWSA as unimportant for the passage of the woman's voting rights amendment.
  4. Seneca Falls convention as the most important single event in the women's suffrage movement.
  5. the NAWSA as important for the unity of the woman's suffrage movement.

Answer(s): A

Explanation:

Why option A is the best choice
The second passage emphasizes incremental victories—local and municipal suffrage, school-board and prohibition votes—as the foundation that made the final constitutional amendment politically inevitable. This incremental, state-level strategy is precisely the hallmark of the American Woman’s Suffrage Association (AWSA) , which deliberately limited its goals to “state-level politics” and “securing the woman’s vote” while downplaying broader equality debates. By highlighting how these partial successes eroded the rationale for exclusion, the author is implicitly crediting the AWSA-style approach with creating the momentum that culminated in the 19th-Amendment.
Why the other options are less suitable
B: NWSA as indispensable for partial suffrages – NWSA, led by Stanton and Anthony, pursued a federal constitutional amendment from the outset; it did not focus on the piecemeal, state-level wins that the passage celebrates. C. NWSA as unimportant for the passage of the amendment – While the passage does not mention NWSA, labeling it “unimportant” overstates the author’s view; the text simply ignores it, not dismisses it. D. Seneca Falls convention as the most important single event – The passage begins with Seneca Falls only as background; the author’s focus is on later, practical gains, not on a single historic convention. E. NAWSA as important for the unity of the movement – Unity is mentioned only in passing (the 1890 merger), but the passage’s logic hinges on partial victories, not on organizational unity per se.
Conclusion The author’s narrative aligns most closely with the AWSA’s strategy of building the suffrage cause through state-level, partial enfranchisement, making option A the most accurate interpretation.


Reference:

National Archives – Women’s Suffrage: The 19th Amendment ( https://www.archives.gov/education/lessons/womens-suffrage ) Library of Congress – The Women’s Suffrage Movement ( https://www.loc.gov/collections/womens-suffrage/ )



Farmlands, wetlands, forests, and deserts that composed the American landscape in the early twentieth century have frequently been transformed during the past thirty years into mushrooming metropolitan areas as urbanization spreads across the country. Many metropolitan areas in the United States are growing at extraordinary rates. `Urban growth is a vital issue that requires our careful attention from local to global scales,` said Barbara Ryan, USGS Associate Director of Geography. `It is not until we begin to take a broad census of the land itself `" tracking landscapes from a spatial perspective in a time scale of decades `" that we can grasp the scale of the changes that have already occurred and predict the impact of changes to come.` On average, between 1984 and 2004, Atlanta, Boston, Chicago, Denver, Houston, Las Vegas, Memphis, Minneapolis- St. Paul, Orlando, Phoenix, Pittsburgh, Raleigh-Durham, Reno-Sparks, Sacramento, Seattle-Tacoma, and Tampa-St. Petersburg averaged 173 square miles of additional urban land over the two decades, with Houston, Orlando, and Atlanta as the top three regions by area. The growth leaders by percentage change were Las Vegas (193 percent), Orlando (157 percent), and Phoenix (103 percent). The tone of this passage is best described as:

  1. restrained ardor
  2. dour
  3. neutral
  4. fanatical
  5. biased

Answer(s): C

Explanation:

Justification
The passage reports statistical facts (e.g., “173 square miles of additional urban land,” “growth leaders by percentage change”) without expressing personal opinion, emotive language, or advocacy. It uses neutral verbs such as “averaged,” “were transformed,” and “requires our careful attention,” which convey information rather than judgment. No adjectives that signal strong emotion (e.g., “fanatical,” “dour”) or bias (e.g., “biased,” “restrained ardor”) appear; the tone remains objective and descriptive.
Why the other options are unsuitable

A: restrained ardor – implies controlled enthusiasm; the text shows no enthusiasm, only factual reporting. B. dour – suggests gloom or sternness; the passage is neither grim nor severe. D. fanatical – denotes extreme, uncritical zeal; the author does not advocate a cause. E. biased – would require a slant or selective emphasis; the data are presented evenly across multiple cities without favoring any viewpoint.
Therefore, the most accurate description of the passage’s tone is neutral (C) .


Reference:

U.S. Geological Survey (USGS). Urban Growth in America: 1984-2004. https://www.usgs.gov/centers/earth ResourcesObservatory/Science/urban-growth USGS. Geography: Tracking Landscape Change. https://www.usgs.gov/geography/land-use-change



Farmlands, wetlands, forests, and deserts that composed the American landscape in the early twentieth century have frequently been transformed during the past thirty years into mushrooming metropolitan areas as urbanization spreads across the country. Many metropolitan areas in the United States are growing at extraordinary rates. `Urban growth is a vital issue that requires our careful attention from local to global scales,` said Barbara Ryan, USGS Associate Director of Geography. `It is not until we begin to take a broad census of the land itself `" tracking landscapes from a spatial perspective in a time scale of decades `" that we can grasp the scale of the changes that have already occurred and predict the impact of changes to come.` On average, between 1984 and 2004, Atlanta, Boston, Chicago, Denver, Houston, Las Vegas, Memphis, Minneapolis- St. Paul, Orlando, Phoenix, Pittsburgh, Raleigh-Durham, Reno-Sparks, Sacramento, Seattle-Tacoma, and Tampa-St. Petersburg averaged 173 square miles of additional urban land over the two decades, with Houston, Orlando, and Atlanta as the top three regions by area. The growth leaders by percentage change were Las Vegas (193 percent), Orlando (157 percent), and Phoenix (103 percent). You can infer from this article that:

  1. the author believes that further study on the issue of urban growth is needed
  2. the author heartily endorses urban growth
  3. the author is very much against urban sprawl and is actively working to limit it
  4. Seattle-Tacoma is getting overcrowded
  5. the author is inflating the change in land use to further his or her own agenda

Answer(s): A

Explanation:

Justification
The passage explicitly states that “urban growth is a vital issue that requires our careful attention from local to global scales” and that a “broad census of the land itself … in a time scale of decades” is needed to understand the changes. This language reflects a call for additional systematic study and monitoring of urban expansion, which directly supports Option A: “the author believes that further study on the issue of urban growth is needed.” Option B is inaccurate because the author never expresses enthusiasm for urban growth; the tone is observational and cautionary, not supportive. Option C is unsupported; while the author notes the scale of change, there is no indication of personal opposition or active policy advocacy to limit sprawl. Option D misinterprets the data; the text does not discuss overcrowding in Seattle-Tacoma, only that it experienced a certain amount of land-area increase. Option E is incorrect; the author presents quantitative figures without sensationalism or evident agenda-driven exaggeration, maintaining a neutral, data-driven stance.


Reference:

U.S. Geological Survey. Urban Growth in America: 1984-2004. https://www.usgs.gov/centers/earth-resources-observatory/science/urban-growth-america-1984-2004 U.S. Geological Survey. National Land Cover Database (NLCD) – Urban Area Change. https://www.usgs.gov/core-science-systems/ngp/land-use/nlcd
End of response.



The small hive beetle, Aethina tumida (Order Caleoptera; Family Nitidulidae), was first discovered in Florida in June of 1998 and has now been found in six other states, George, South Carolina, North Carolina, Pennsylvania, Ohio, and Minnesota. To date, the beetle has not been found in Virginia, but the movement of migratory beekeepers from Florida may have transported the beetle to other states. Recent finding also indicate transport of the beetles in packages. The small hive beetle can be a destructive pest of honey bee colonies, causing damage to comp, stored honey, and pollen. If a beetle infestation is sufficiently heavy, they may cause bees to abandon their hive. The beetles can also be a pest of stored combs and honey (in the comb) awaiting extraction. Beetle larvae may tunnel through combs of honey, causing discoloration and fermentation of honey. The small hive beetle is undesirable for all of the following reasons EXCEPT:

  1. the harm it can cause to the honeycomb
  2. potential deleterious effects to stored honey and pollen
  3. the possibility that bees may flee the hive
  4. the probability of the beetle attacking people and animals
  5. the way it can stain and spoil honey

Answer(s): D

Explanation:

Why option D is the correct “EXCEPT” choice
The small hive beetle (Aethina tumida) is considered undesirable because it directly harms the bee colony and the products stored within it.

A: Harm to the honeycomb – Adults and larvae chew and tunnel through wax, weakening the structural integrity of the comb and making it more susceptible to collapse. B. Deleterious effects on stored honey and pollen – Larval feeding contaminates honey with frass and fungal spores, leading to fermentation, off-flavors, and loss of marketable quality. C. Bees may abandon the hive – Heavy infestations create a stressful environment; colonies often abscond rather than tolerate the damage and resource loss. E. Staining and spoilage of honey – The beetle’s frass and secretions discolor honey and can cause off-odors, rendering it unfit for extraction or sale.
Why option D is not a valid reason for dislike
D: Probability of the beetle attacking people and animals – A. tumida is a strictly necrophilic and saprophytic beetle that feeds on decaying organic material, honey, pollen, and wax. It lacks the mouthparts, size, or behavior required to bite or otherwise harm humans or livestock. No credible entomological source reports predatory or parasitic attacks on vertebrates. Consequently, the beetle poses no direct health risk to people or animals, making this the only statement that does not describe a legitimate reason for its undesirability.


Reference:

University of Florida IFAS Extension – Small Hive Beetle Management https://edis.ifas.ufl.edu/publication/HS103
USDA Animal and Plant Health Inspection Service (APHIS) – Small Hive Beetle Fact Sheet https://www.aphis.usda.gov/aphis/ourfocus/planthealth/plant-pest-and-disease-programs/small-hive-beetle
These sources confirm the beetle’s biology, its impact on honey bee colonies, and the absence of any documented attacks on humans or animals.



The small hive beetle, Aethina tumida (Order Caleoptera; Family Nitidulidae), was first discovered in Florida in June of 1998 and has now been found in six other states, George, South Carolina, North Carolina, Pennsylvania, Ohio, and Minnesota. To date, the beetle has not been found in Virginia, but the movement of migratory beekeepers from Florida may have transported the beetle to other states. Recent finding also indicate transport of the beetles in packages. The small hive beetle can be a destructive pest of honey bee colonies, causing damage to comp, stored honey, and pollen. If a beetle infestation is sufficiently heavy, they may cause bees to abandon their hive. The beetles can also be a pest of stored combs and honey (in the comb) awaiting extraction. Beetle larvae may tunnel through combs of honey, causing discoloration and fermentation of honey. This passage was most likely written to:

  1. help customers understand how difficult it is to raise commercial honey
  2. inform beekeepers about a menace that may be contaminating their hives
  3. warn consumers that the price of honey is likely to raise
  4. spark a federal bailout of the industry
  5. convince the Pure Food and Drug Administration to take the problem more seriously

Answer(s): B

Explanation:

Justification
The passage describes the small hive beetle (Aethina tumida) , its spread, biology, and the damage it causes to honey bee colonies (e.g., comb damage, honey fermentation, colony abandonment). Its primary audience is beekeepers , who need to recognize the pest and manage infestations to protect their hives and production. The wording focuses on technical impacts (“destructive pest,” “damage to comb, stored honey, and pollen,” “larvae tunnel through combs”) rather than consumer-oriented concerns, market effects, or policy advocacy.
Why the other options are unsuitable
A – The text does not address the difficulty of raising commercial honey; it focuses on a specific pest. C – No mention of honey prices or market forecasts is made. D – There is no appeal for a federal bailout; the tone is informational, not political. E – While the FDA may eventually be involved, the passage does not explicitly call for regulatory action or imply that the FDA must “take the problem more seriously.”
Thus, the passage’s purpose is best captured by B: inform beekeepers about a menace that may be contaminating their hives .


Reference:

USDA APHIS – Small Hive Beetle (Aethina tumida) Fact Sheet: https://www.aphis.usda.gov/aphis/ourfocus/planthealth/plant-pest-and-disease-information/small-hive-beetle
Florida Department of Agriculture & Consumer Services – Beekeeping: Small Hive Beetle: https://www.fdacs.gov/Business/Beekeeping/Small-Hive-Beetle



Although often confused with each other, global warming and ozone depletion are two separate problems threatening Earth's ecosystem today. Global warming is caused by the build-up of heat-trapping gases in the atmosphere. It was dubbed the `greenhouse effect` because it is similar to a greenhouse in that the sun's rays are allowed into the greenhouse but the heat from these rays in unable to escape. Ozone depletion, however, is the destruction of the ozone layer. Chemicals such as chlorofluorocarbons and methyl bromide react with ozone, leaving a `hole` in the ozone layer that lets dangerous UV rays through. Both are serious threats to life on Earth.
While the greenhouse effect maintains the appropriate temperature for life on Earth, problems are exacerbated when the quantity of greenhouse gases in the Earth's atmosphere increases drastically.
When this occurs, the amount of heat energy that is insulated within the Earth's atmosphere increases correspondingly and results in a rise in global temperature. An increase of a mere few degrees Celsius does not appear very threatening. However, numbers can be deceiving.
When you consider that the Ice Age resulted from temperatures only slightly cooler than those today, it is obvious that even very subtle temperature changes can significantly impact global climate. Global warming threatens to desecrate the natural habitats of organisms on Earth and disturb the stability of our ecosystem. The climate changes that would result from global warming could trigger droughts, heat waves, floods, and other extreme weather events. Like most other environmental problems, humans are the cause of global warming. The burning of fossil fuels is largely responsible for the increase in the concentration of carbon dioxide in the atmosphere. Every time someone drives a car or powers their home with energy derived from power plants that use coal, carbon dioxide is released into the atmosphere. The atmospheric concentrations of carbon dioxide and methane have risen meteorically since preindustrial times, mainly due to the contributions of factories, cars, and large-scale agriculture. Even if we immediately stopped emitting greenhouse gases, we would continue to see the effects of global warming for decades because of the damage we have already inflicted. Despite the pessimistic outlook, there are things that can be done to reduce global warming. Although the problem may seem overwhelming, individuals can make a positive difference in combating global warming. Simple things like driving less, using public transportation, and conserving electricity generated by combustion of fossil fuels can help reduce the emissions of greenhouse gases. It is important to realize that it is not too late to make a difference. If everyone does what they can to reduce their contributions of greenhouse gases to the atmosphere, the efforts of people around the world will act in concert to thwart the progression of global warming. If the effort is not made immediately, the delicate global ecosystem could be thrown irreversibly out of balance, and the future of life on Earth may be jeopardized. The `greenhouse effect` is:

  1. global warming
  2. another term for the Ice Age
  3. ozone depletion
  4. a chemical that is harming Earth
  5. a type of gas

Answer(s): A

Explanation:

Why option A (“global warming”) is the correct answer
The passage defines the greenhouse effect as the process by which heat-trapping gases prevent infrared radiation from escaping the atmosphere, thereby warming the planet. It explicitly states that this warming “results in a rise in global temperature” and that the phenomenon is the driver of global warming. Therefore, within the context of the question, greenhouse effect is synonymous with the overall warming of the Earth’s climate, i.e., global warming .
Why the other choices are unsuitable
B: another term for the Ice Age – The Ice Age refers to a past period of extensive glaciation, characterized by cooler global temperatures, the opposite of the warming described. C. ozone depletion – Ozone depletion concerns the loss of stratospheric ozone and increased UV radiation; it is a distinct atmospheric problem unrelated to heat retention. D. a chemical that is harming Earth – The greenhouse effect is a mechanism, not a chemical substance. E. a type of gas – While greenhouse gases (e.g., CO ₂ , CH ₄ ) cause the effect, the term itself denotes the process of warming, not a specific gas.


Reference:

Intergovernmental Panel on Climate Change (IPCC) – Climate Change 2021: The Physical Science Basis: https://www.ipcc.ch/report/ar6/wg1/ United Nations Environment Programme (UNEP) – Ozone Layer and Climate: https://www.unep.org/resources/report/ozone-layer-and-climate-change



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