Which of the following are used by individual farmers to generate biogas for their own use?
A) Sugar, water, and anaerobic bacteria
B) Cornstalks, ethanol, and aerobic bacteria
C) Manure, water, and anaerobic bacteria
D) Manure, water, and aerobic bacteria
C
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The cooling or warming of air that occurs because air is allowed to expand or is compressed, not because it is added or subtracted is called ________.
Fill in the blank(s) with the appropriate word(s).
What triggered the debris avalanche that caused the destruction of Yungay, Peru?
A) rainfall B) an earthquake C) volcanic activity D) snowmelt
Smaller grid spacing ____ the resolution of computer forecasting models
A) can decrease B) does not change C) can increase D) can vary
The tropopause altitude is highest ________ because of the ________
A) during both the spring and autumn; equal day lengths around the globe B) during the summer; increased atmospheric pressure C) during the winter; Sun's direct rays hitting the Tropic of Capricorn D) at the equator; intense heating from the surface E) at the poles; diffuse solar radiation