The most common component of the atmosphere is
A. particulates.
B. carbon dioxide.
C. aerosols.
D. nitrogen.
Answer: D
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Which of the following statements about developing countries is true?
a. They are highly industrialized. b. They have high-average per capita income. c. They include the United States, Germany, and Japan. d. They are classified as middle-income or low-income. e. They have about 85% of the world's wealth and income.
Which of the following is unlikely to be found in the zone of transition that surrounds the CBD?
A) warehouses B) wholesaling C) upper-class residences D) light industry
The primary cause of soil erosion is ________
A) no-till agriculture B) crop rotation C) strip cropping D) use of crop cover E) over cultivation
Which of the following is the most important function of schooling in small fish?
A) Aggressive species can't chase away the whole school B) Invade the territory of larger species C) Male fertilization of eggs released into the water D) Moving in the same direction E) Protection from predators