Which phenomenon cannot currently be used to generate electricity directly?
A. ocean tides
B. ocean waves
C. heavy rains
D. water behind dams
E. flowing river water
Answer: C
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Identify each of the substances in the following chemical reactions as acting as an "acid" or a "base."NH3 + H2O ? NH4+ + HO-
What will be an ideal response?
What is the core argument in the concept "tragedy of the commons"?
A) Monetary systems are often manipulated by elites. B) Governments will intervene when it is in their direct interest to do so. C) Resources that are shared among several groups are ruined by individual actions. D) Overpopulation is the result of lack of family planning methods. E) Famine is likely to result after an isolated area experiences crop failure.
What kind of unconformity is visible in this figure? The unconformity in the question is indicated by the Arrow B
A) Disconformity B) Nonconformity C) Angular unconformity
Which of the following shoreline features is generally composed of bedrock?
A. barrier island B. offshore bar C. wave-cut platform D. spit E. None of these choices are correct.