QUESTION: 133

Getting rid of solid waste is a major problem in many cities. Open spaces for landfills are becoming scarce. Burning solid waste may produce harmful gases as well as particles in the surrounding air. Recycling is useful, but effective techniques for recycling some materials have yet to be developed. Marine disposal may damage the delicate ecosystems in this fragile environment.
Which of the following solid waste disposal techniques would MOST LIKELY result in air pollution?

recycling
landfills
marine disposal
landscaping
burning

Answer(s): E

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QUESTION: 134

A liquid's boiling point is the temperature at which the pressure of its escaping vapor is equal to the atmospheric pressure.
Reduced pressure on the surface of a liquid results in a reduction in the vapor pressure needed for boiling to occur. At higher elevations, thinner air causes a reduction in atmospheric pressure, and liquids boil at lower temperatures.
At lower elevations, the atmospheric pressure is higher, and liquids boil at higher temperatures.

If Diane boiled water for coffee while camping in the mountains, which statement best describes what would happen to the water?

boil at a lower temperature than it would at a lower elevation
boil at a higher temperature than it would at a lower elevation
boil at the same temperature as it would at a lower elevation
not boil at the high elevation in the mountains
change to steam before it had a chance to boil

Answer(s): A

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QUESTION: 135

Almost all food containers and packages have nutrition labels such as the one below, which might appear on the container of a soft drink. These labels indicate the number of servings in the container and the ingredients of its contents. They will usually list the amount of fat, sodium, sugars, carbohydrates, and protein that are in the contents. People who are diabetic can not consume a large amount of sugar in their diet.
Which statement best describes the expected and MOST sensible reaction of a person who is diabetic when he or she reads the label on this container of soft drink?
Exhibit:

Exhibit

it has a high glucose (sugar) content
it contains more protein than you should consume in a day
it contains no calories
it contains no fat
it has 8 oz per serving

Answer(s): A

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QUESTION: 136

To begin a fission reaction, a neutron is shot at high speed into the nucleus of an atom of Uranium-235. This process releases a large amount of energy contained within the nucleus. The diagram above illustrates this process as well as possible by-products.

Based on the diagram and information, which statement best describes the fission reaction shown?

The nucleus of Uranium-235 absorbs a neutron and gets bigger.
The nucleus of Uranium-235 absorbs energy and gets smaller.
The nucleus of Uranium-235 splits into smaller nuclei and releases energy.
Two nuclei of Uranium-235 combine and release energy.
Three neutrons combine and release energy.

Answer(s): C

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QUESTION: 133

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QUESTION: 136