Free GED SCIENCE Exam Braindumps
GED Section 3: Science Questions 146–150 (page: 31)

Updated On: 9-Feb-2026

Mai Ling's lunch consists of a tuna fish sandwich on whole wheat bread with lettuce, a glass of milk, and carrot sticks.

According to the table at the left, which nutrient is missing?

  1. protein
  2. carbohydrates
  3. vitamin A
  4. B vitamins
  5. vitamin C

Answer(s): E



Refer to the following information and table.
The table below indicates the results of a preliminary study of a flu medication (RX). The subjects were randomly selected groups of males, ages 50­70, residing in a North American city with a population of more than one million people.


Based on the data in the chart and the information provided, which treatment group was the control group in this preliminary study?

  1. A
  2. B
  3. C
  4. D
  5. E

Answer(s): A



A family wants to plant a garden, but the soil around the house is mainly clay. Clay soil easily becomes saturated with water, cutting off the air supply needed by plants. Adding sand and peat moss can help plants grow in clay soil.
Which is the procedure for preparing the clay soil for planting?

  1. Dig deep holes and keep them filled with water for several weeks.
  2. Mix sand and peat moss with the soil while it is fairly dry.
  3. Plant only in sand or peat moss.
  4. Wait until midsummer before trying to plow or spade the soil.
  5. Wet the soil thoroughly for a week before trying to plow or spade it.

Answer(s): B



Exhibit:



Using the chart and the information provided, what is the windchill at a wind speed of 25 mph and a temperature of 15° F?

  1. -29° F
  2. -25° F
  3. -22° F
  4. -17° F
  5. -15° F

Answer(s): C



The human body's endocrine system, which keeps the body in a healthy balance, consists of glands that release chemical substances called hormones into the bloodstream. The endocrine glands and the functions that they regulate are shown in the table below.

Many adults have some form of diabetes. Based on the information and table, which gland is primarily responsible for regulating blood sugar level?

  1. pituitary gland
  2. parathyroid gland
  3. thyroid gland
  4. pancreas
  5. adrenal glands

Answer(s): D



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