By digesting soil, earthworms:
a. change the structure of the soil.
b. change the texture of the soil.
c. change the chemical quality of the soil.
d. all of these
D
Environmental & Atmospheric Sciences
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What is the source of most of the dissolved materials found in the ocean?
a. biological activities b. weathering of crustal rocks c. outgassing d. convection currents e. atmospheric deposition
Environmental & Atmospheric Sciences
A(n) ____ is a very large column of superheated mantle that originates at the boundary of the core and
mantle. a. Volcano b. Plume c. Asthenosphere d. Ridge
Environmental & Atmospheric Sciences
What were three major mobile belts in North America in the Paleozoic? What will be an ideal response?
Environmental & Atmospheric Sciences
C6H12O6 + 6O2 g 6CO2 + 6H2O + heat energy is the generalized equation for
A) respiration. B) photosynthesis. C) chemosynthesis. D) transpiration.
Environmental & Atmospheric Sciences