The most common nutrient that limits coastal productivity is ________.
A. oxygen
B. iron
C. nitrate
D. carbon
E. phosphate
Answer: C
Environmental & Atmospheric Sciences
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France depends on more than half of its energy supply from
A) nuclear power B) wind C) coal D) natural gas E) solar
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The Cassini gap refers to the planetless belt of asteroids between Mars and Earth
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
The trapping of solar radiation in Earth's lower atmosphere
A) is entirely anthropogenic. B) is called the greenhouse effect. C) began with humans' use of fossil fuels. D) has no benefits. E) began with humans' use of fossil fuels and has no benefits.
Environmental & Atmospheric Sciences
Where is subduction occurring on this figure of South America?
A. A B. B C. C D. D E. E
Environmental & Atmospheric Sciences