The mechanisms of human adaptation may be less effective at present than in earlier times because
A) we often don't get immediate feedback from the environmental consequences of our actions.
B) the environmental consequences of our actions are less serious than they formerly were because technology is able to deal with them.
C) many decisions that affect the environment are made by people far removed from the consequences.
D) all of the above.
E) A and C.
Question 2
It is estimated that, even with modern techniques, only about __________ percent of the earth's land area is suited to intensive farming.
A) 20 B) 50 C) 7 D) 2 E) 11
