Spoil banks and tailings piles
A. are unsightly but not hazardous.
B. typically weather very rapidly.
C. can be eliminated by putting them back into the underground mines from which they came.
D. All of the choices are correct.
Answer: B
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Climatic environments within North America are mainly
A. temperate midlatitude B. Mediterranean C. humid temperate D. cold polar
Long linear limestone masses composed of skeletal material and forming a barrier between a
shallow platform on one side and a comparatively deep marine basin on the other side:a. barrier islands d. beaches b. ophiolites e. alluvial fans c. barrier reefs
What percentage of known species are invertebrates?
A. 75% B. 50% C. 35% D. 65%
The acronym that stands for habitat destruction, invasive species, pollution, human population, and overharvesting is
A. HDIAPHPO B. HIPHO C. HIPPO D. DIPPS E. None of these