The most serious threat to coral reefs are ________
A) floods
B) humans
C) hurricanes
D) sea stars
E) tsunami
B
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What are trophic levels? Why is it better to eat organisms lower on the tropic pyramid? What will be an ideal response?
Within a Hadley cell, ________
A) cool water rises and warm water falls B) cool air rises and warm air falls C) warm air rises and cool air falls D) warm water rises and cool water falls
A long, continuous recessed zone found along the base of a sea cliff is a(n) ____________________
Fill in the blank(s) with correct word
If sea ice melts, this would affect the climate by ________
A) decreasing the moisture in the atmosphere B) increasing the moisture in the atmosphere C) increasing albedo D) increasing the amount of solar energy absorbed at the surface E) reducing the amount of solar energy absorbed at the surface