One rat can eat how many bushels of grain per year?
a. 5 bushels
b. 10 bushels
c. 40 bushels
d. 50 or more bushels
Answer: b. 10 bushels
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Atmospheric pollution is the worst when
A. coal is burned. B. uranium undergoes fission in a nuclear reactor. C. natural gas is burned. D. geothermal heat is used to generate electricity.
Why are temperatures in the thermosphere not strictly comparable to those experienced near Earth's surface?
What will be an ideal response?
Most hazardous volcanoes occur near subduction zones
a. True b. False
PV technology is best described as ________
A) using sun's energy to warm a room without mechanical devices B) trapping sun's heat and storing it for various uses C) a passive solar technology D) using mirrors to concentrate sunlight, in order to heat water and produce steam for electricity generation E) using sunlight to generate electricity