Which of the following correctly describe comets?
A. small in size
B. icy and rocky
C. They have a tail of gas and ice.
D. All of these correctly describe comets.
Answer: D
Environmental & Atmospheric Sciences
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Much of the Northern Hemisphere was covered in ice 20,000 years ago
Indicate whether the statement is true or false.
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Which of the following environmental lapse rates represent stable inversion conditions?
A. A B. B C. C D. D
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Define bioaccumulation and biomagnification
What will be an ideal response?
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What is the highest rank of coal?
A. Sub-bituminous B. Bituminous C. Anthracite D. Lignite
Environmental & Atmospheric Sciences