The application of the precautionary principle to a commercial fishery whose primary catch species is in decline would result in
A) many years in which no fish are harvested at all.
B) an optimal population size that is just about the maximum sustainable yield.
C) a total allowable catch above the best estimate of the maximum sustainable yield.
D) a total allowable catch below the best estimate of the maximum sustainable yield.
D
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In the U.S., what is the ratio of groundwater being withdrawn to that being recharged? In other words, what is value for water out/water in?
A. >1:1 B. <1:1 C. 1:1 D. 0
Which of the following is not a factor that is contributing to the decline in amphibian populations?
a. habitat loss and fragmentation b. viral and fungal diseases and parasites c. increase in UV radiation d. prolonged drought e. hunting of frogs for froglegs, a delicacy that is served in restaurants
On sunny days, why do hot-air balloons suddenly rise when they drift over a wide road or parking lot made of black asphalt?
What will be an ideal response?
The type of volcano with the gentlest slope is the ____________________ volcano
Fill in the blank(s) with correct word