The threat of global warming can be addressed by
a. using energy more efficiently
b. reducing deforestation
c. slowing population growth
d. all of these answers
e. shifting to renewable resources
D
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What happens when corals exceed their normal temperatures for too long of a period of time?
a. Coral polyps overheat and die b. Corals eject their zooxanthellae c. Corals break down their shells d. Corals increase their zooxanthallae
Using the Periodic Table, what can you say about the element silicon (Si)?
A. it has 14 electrons in the outer shell B. it has 3 electron shells and 4 electrons in the outer shell C. it has 2 electron shells and 2 electrons in the outer shell D. it has 4 electron shells and 3 electrons in the outer shell E. None of these choices are correct.
Variations in Earth's orbit and rotation cause:
A) consistently higher global temperatures. B) consistently lower global temperatures. C) no change in solar energy reaching Earth. D) changes in solar energy reaching Earth.
On what information is a landslide hazard map based?
A) geology and inventory of past landslides B) subsurface water flow C) climate D) grading codes for home construction