Currently, the greatest ecological crisis facing marine food webs is ________
A) overharvesting
B) oil spills
C) abandoned fishing nets
D) plastic dumping
E) radiation
A
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Of the OPEC nations, which country has the largest light oil reserves?
A. Kuwait B. Iraq C. Venezuela D. United Arab Emirates E. Saudi Arabia
The problem of acidic air emissions and acid rain are worst in
A) Africa. B) North America and Western Europe. C) Asia. D) Australia. E) Antarctica.
Cultivation of seafood under controlled conditions is called
A) controlled fish production. B) environmentally controlled seafood production. C) aquaculture. D) overfishing. E) seafood culture.
Effective environmental leaders believe that their actions ________
A) have no impact on the environment B) matter C) can do nothing because they are only one person D) cannot be changed E) are superior to others