Firn is compacted granular ice that forms where snow is deeply buried.
a. true
b. false
Ans: a. true
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A scientific idea that is well established and unquestionable is a
A. fact of nature. B. valid hypothesis. C. both of these D. none of these
Which of the following is a recent political response to efforts of the environmental movement?
A) Increased conflict over access to publicly owned resources B) Increased attention to sources of radiation C) Increased reliance upon fossil fuels D) Decreased reliance upon technology
A(n) ________ pond is used to hold back water during a storm and release it more slowly into the stream system
Fill in the blank(s) with correct word
Our planet and our lives are powered by
A) radiant energy generated by nearby planets and satellites. B) utilities and oil companies. C) shorter wavelengths of gamma rays, X-rays, and ultraviolet. D) energy derived from inside Earth. E) radiant energy from the Sun.