Denitrifying Bacteria
What will be an ideal response?
Bacteria that convert the nitrates in soil or water to gaseous nitrogen and release it back into the atmosphere.
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What was the primary way sediment was transported to North America (east coast) continental margin
during the last ice age? a. Rivers carry the sediment right to the shelf edge. b. Strong currents carry the sediment to the contential shelf edge. c. Wind blows sediment from the continent to the shelf edge d. Glaciers
Rock that has formed from cooling magma or lava is
A. metamorphic rock. B. sedimentary rock. C. igneous rock.
The side chain of ornithine is which of the following?
A) nonpolar B) polar but neutral C) acidic D) basic
Under a(n) ________, strong powers are allocated to local governments
A) unitary system B) federal system C) constitutional system D) parliamentary system E) autocratic system