According to the ________, the Earth and solar system began to form nearly 5 billion years ago from the gravitational collapse of a huge cloud of dust and gases
A) big bang theory
B) plate tectonic theory
C) uniformitarianism
D) nebular theory
Answer: D
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A risk is
A. something that is always to be avoided. B. involves a biological or chemical hazard. C. a lifestyle choice. D. the probability of suffering harm from a hazard E. is inherently transmissible.
Which of the following best matches the description?Pollution from a single pipe or series of pipes.
A. water table B. aquitard C. in-stream uses D. confined aquifer E. point source F. septic tank G. surface impoundment H. aquifer I. unconfined aquifer J. artesian aquifer K. groundwater mining L. water diversion M. landfills N. aquiclude O. nonpoint source
Wheat developed as part of the Green Revolution was specially selected because of its ability to
A) produce high-yields of grain. B) resist prolonged droughts. C) naturally produce pesticides. D) produce grain with high levels of iron.
Most of the people on Singapore are:
A) ethnic Chinese B) of Portuguese ancestry C) Muslim D) Malayan E) none of these