Where ice sheets reach the ocean by flowing through fjords, the glacial ice is called a(n) _____
a. ice cap
b. outlet glacier
c. piedmont glacier
d. end moraine
e. roche moutonnée
b
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Which of the following describes the concentration of CO2 in the lower atmosphere?
A. It is 30 percent higher than it was 300 years ago. B. It has stabilized. C. It is not related to the amount of forest cover on Earth. D. The present average measurement is 150 ppm.
The lakes in the photograph below are all connected by a stream, so they are called
A) cols.
B) kames.
C) paternoster lakes.
D) cirques.
Deserts receive less than ____________________ centimeters of rain per year, on average. Fill in the blank(s) with the appropriate word(s)
Current data from satellite and sea surface measurements of temperature in the troposphere, reveal
A) complete disagreement with predicted temperatures. B) periods of cooling and warming until 1976, but after 1976, consistent warming. C) no correlation between temperature and levels of greenhouse gases. D) a general cooling of global atmospheric temperatures, more pronounced after 1976.