Which ecosystem component plays a key role in the recycling of nutrients in the biosphere?
a. Producers
b. primary consumers
c. Herbivores
d. tertiary consumers
e. Decomposers
E
Environmental & Atmospheric Sciences
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Australia's rate of natural increase is:
A) below 1% B) between 1 and 2% C) between 2 and 3% D) greater than 3%
Environmental & Atmospheric Sciences
This type of crater, which is very abundant on most moons and solid planets, is formed by
A. an explosive volcanic eruption. B. impact from a meteoroid or other object from space. C. a nonexplosive volcanic eruption. D. the collapse of a limestone cave.
Environmental & Atmospheric Sciences
Nitrogen Fixation
What will be an ideal response?
Environmental & Atmospheric Sciences
An explanation for some natural phenomenon that is testable and is supported by a large body of
evidence (e.g., plate tectonics): a. hypothesis d. principle b. scientific law e. theory c. transgression
Environmental & Atmospheric Sciences