Deforestation ________
A) prevents erosion
B) decreases carbon dioxide in the atmosphere
C) causes population explosions
D) is not widespread in North America
E) has the greatest impacts in tropical areas and arid regions
Answer: E
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What charge will an atom have that has lost an electron?
Negative No charge Positive
The development of similar characteristics in distantly related organisms is called ____
a. divergent evolution b. allopatric speciation c. convergent evolution d. parallel speciation e. parallel evolution
Rachel Carson's book Silent Spring showed that
A) pesticides like DDT were ineffective in killing crop pests. B) scientific expertise can help shape positive environmental policies. C) industries producing harmful chemicals welcomed scientific evaluation of their environmental impact. D) biodiversity could be increased with cautious use of DDT.
The two factors that are most important in determining the density of air are ________
A) temperature and salinity B) nitrogen and water vapor content C) temperature and water vapor content D) temperature and ozone E) carbon dioxide and water vapor content