The peak of sunspot cycles
A) brings a cooler global climate.
B) occurred at least 20 times during the Maunder Minimum.
C) corresponds with a slight increase in solar energy output.
D) all of the above
E) none of the above
C
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Illegal hunting for profit is called
A. subsistence hunting. B. sport hunting. C. poaching. D. commercial hunting. E. trophy hunting.
Worldwide reserves for most metals are projected to last
A. a few years. B. about 1000 years. C. a few decades. D. a few centuries.
Of the following animals in a terrestrial food web, which would be expected to require the largest territorial area per individual animal?
A) Black snake B) Eagle C) Rabbit D) Mouse
Earth is the only major body in the solar system on which there are active volcanoes.
Answer the following statement true (T) or false (F)