For electric generation in the United States, the main energy resource is
A) coal.
B) oil and natural gas.
C) wood.
D) solar energy.
Answer: A
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Worldwide, the majority of glaciers are ____
A)advancing B)retreating C)approaching the firn limit D)flowing faster E)flowing slower
The effect of increased atmospheric carbon dioxide concentrations on plants
A) can result in accelerated plant growth. B) is reflected in the shorter growing season in northern mid-latitudes. C) has substantially dampened seasonal changes in carbon dioxide concentrations. D) has so far had only positive results on plants and plant communities.
According to the theory of isostasy, mantle rocks over long periods of time behave as:
a. plastic material b. viscous material c. elastic material d. brittle material
?Suppose that where you live, the middle of January is typically several degrees warmer than the rest of the month. If you forecast this "January thaw" for the middle of next January, you would have made a
a. ?forecast based on the analogue method. b. ?persistence forecast. c. ?forecast based on weather types. d. ?probability forecast. e. ?climatological forecast.