Assume that man's recorded history can be stretched back to 4600 years before the present. This is approximately what fraction of geologic time?
A) one hundred-thousandth B) one millionth
C) one billionth D) one ten-thousandth
B
Environmental & Atmospheric Sciences
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Heavy seasonal rains are called ___________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
What is the difference between a community and an ecosystem?
What will be an ideal response?
Environmental & Atmospheric Sciences
What do these teardrop-shaped hills (drumlins) record?
A) Ancient lake levels
B) Piles of sediment recording past positions of the end of the glacier
C) Erosion and sculpting of soft materials by a moving glacier
D) Melting of large blocks of rock in the ice
Environmental & Atmospheric Sciences
What country is NOT one of the United States' five largest trading partners?
A) Japan B) Great Britain C) Germany D) Mexico E) Canada
Environmental & Atmospheric Sciences