The Millennium Ecosystem Assessment primarily characterized human impact on

A) atmospheric carbon dioxide levels.
B) degradation of the ozone layer.
C) ecosystem services.
D) plate tectonics.


C

Environmental & Atmospheric Sciences

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Discuss the environmental conditions required for the formation of organic reefs. What will be an ideal response?

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Whale falls support a large community of organisms including sharks, crabs, and bacteria.

Answer the following statement true (T) or false (F)

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Certain night-active moths and day-active birds are specialized nectar feeders. How do these species coexist if they are using the same resource for food?

A. Because they both use the nectar, eventually one of the two species will need to move to a new area B. They do not compete for the nectar because they feed at different times of the day C. Eventually the niche breadth will increase and there will be less competition D. There is enough nectar to supply both the birds and the moths with their feeding needs E. None of the choices is correct

Environmental & Atmospheric Sciences

Where does most of the sediment on the Pacific coast originate from?

a. Granite rock b. Biological productivity c. Basalt Rock d. Lava

Environmental & Atmospheric Sciences