What level of pollution reduction gives the smallest benefit for money spent?
A) From 1-20 of pollution reduction
B) From a 20-40 pollution reduction
C) From a 60-80 pollution reduction
D) From a 80-100 pollution reduction
Question 2
The use of enhanced recovery by an oil company
A) primarily depends upon the current market price of oil.
B) is usually more cost effective than recovering oil using secondary recovery.
C) has not yet been used because oil reserves remain abundant.
D) is now routine, as every bit of oil is extracted from all available wells.
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