How will volcanoes affect climate?
a. Explosive eruptions emit huge quantities of gas and fine-grained debris into air
b. The significant amount of heat released by volcanoes can cause global warming
c. Portion of incoming solar radiation reflected and filtered out, causing significant global cooling
d. Both a and b
e. Both a and c
Ans: e. Both a and c
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Which kind of mining technique has the potential to dramatically reduce water and air pollution?
What will be an ideal response?
Organic acids can chemically weather a rock. Where would these acids originate?
A) Decay of granite B) Thermal reaction between water and limestone C) Secretion from and decay of vegetation D) Leaching from the E horizon
Compared with the other Group C types, what distinguishes marine west coast climates?
A. They don’t occur in the midlatitudes. B. They receive more solar radiation. C. They are typically the driest of all C climates. D. They receive onshore flow of westerlies. E. They provide very little cloud cover.
Nucleic acids
A. store energy in living organisms. B. consist of folded strings of amino acids. C. store genetic information in living organisms. D. act as hormones that allow cells to communicate with one another.