According to WHO (World Health Organization) and World Bank experts, indoor air pollution is
a. the world's most serious air pollution problem
b. the world's least serious air pollution problem
c. a serious problem in poor countries, but no problem in affluent countries
d. more than one of these
e. none of these answers
A
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Which of the following most accurately describes cropland trends in the United States and China?
A) China's population boom has resulted in a recent increase in cropland acreage, while cropland acreage in the United States has stabilized. B) Both countries are increasing in cropland acreage to support their growing populations and to maintain a growing export industry. C) The amount of land in crop production has stabilized in both countries despite the fact that both countries are increasing in population. D) The amount of land in crop production is decreasing in both countries despite the fact that both countries are increasing in population.
A soil rich in organic material will be ____
a. black or dark brown b. gray c. red d. yellow e. light brown
What is a major difference between capitalist societies and noncapitalist ones?
A) Cities in noncapitalist societies were often huge, but shrank when they became capitalist. B) Capitalism rewards innovation, change, and risk taking. C) Non-capitalist societies reward innovation, change, and risk taking. D) Markets exist. E) Slavery was common in capitalist societies, but not in noncapitalist ones.
Where are extratropical cyclones typically found?
a. Hadley cells b. doldrums c. Ferrel cells d. ITCZ e. The Equator