Under most of the Earth's land surface, solid rock exists as a buried layer known as ________
A) sediments
B) an outcrop
C) bedrock
D) regolith
E) soil
Answer: C
Environmental & Atmospheric Sciences
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Of the following igneous rocks, which would have the lowest silica content?
a. rhyolite b. granodiorite c. andesite d. gabbro
Environmental & Atmospheric Sciences
Soil organisms usually stay ________ the soil.
A. Close to the surface of B. Deep below the surface of C. Near the middle of D. About half stay close to the surface and the other half stay deep below the surface of the soil E. Spread uniformly throughout
Environmental & Atmospheric Sciences
Complete the following nuclear equation:
Bi ? ?? + 
e
A.
 Pb |
B.
 Pb |
C.
PoD.
 Th |
E. none of the above
Environmental & Atmospheric Sciences
During the Challenger expedition, the term Oceanography literally implied the marking or charting of the oceans
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences