As environmental protection increases,
A. the biggest marginal benefits are achieved first, smaller marginal benefits follow.
B. inexpensive and easy methods of reducing pollution begin to dwindle.
C. the more costly and innovative methods can be readily avoided.
D. in addition to a and b above, the quality of environmental protection increases.
D. in addition to a and b above, the quality of environmental protection increases.
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What has been attributed to the deadly viral epidemic among dolphins in the western Mediterranean?
A) DDT B) Refined oil spills C) PCBs D) CFCs
The Spring Wheat producing region lies to the north of the Winter Wheat region
Indicate whether the statement is true or false
To calculate population doubling time, you divide the number 72 by the rate of natural increase.
a. true b. false
In Europe, the Wisconsin ice advance is known as the ________
A) French B) Alpine C) Würm D) Stoss E) Bergschrund