What has accounted for the majority of the world’s population growth in recent years?
a. Women are having more babies.
b. Death rates have dropped due to technology, medicine, and food.
c. More women are using contraceptives.
d. Nothing; the population has dropped in recent years.
Answer: B
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A) a manufacturing company B) an advertising company C) a publishing company D) an entertainment company E) a communications media company
Referring to the figure below, how many of the phase changes release energy to the surroundings?
A. all B. one C. none D. two
The largest layer of Earth, in terms of volume, is the ____
a. lithosphere b. asthenosphere c. crust d. core e. mantle
Which of the following is NOT a natural characteristic of the troposphere?
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