Which of the following is responsible for about half of all air pollution in the United States?
A) Coal-fired power plants
B) Railroad trains
C) Cars, trucks, and buses
D) Paper mills and steel mills
C
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What is the function of the thick outer coverings of rattlesnakes and insects in desert biomes?
a. to prevent sunburn b. to reduce water loss through evaporation c. to prevent drowning during typical desert flash floods d. to prevent sunburn and reduce water loss e. for protection during competitive action during mating seasons
Minerals of the amphibole group have their silica tetrahedra arranged in double chains. Indicate whether the statement is true or false
Referring to Figure 14.7.2, North America uses ________ water per capita than any other region of the world. Figure 14.7.3 provides insight that this is primarily due to ________
A) less; industrial usage B) much more; industrial usage C) much more; agriculture D) less; agriculture E) much more; municipal usage
The concept of sustainable development considers ________
A) the needs of future generations B) the fastest ways to economic prosperity C) growth in profits from international trade D) the importance of developing the arts