Which of the following are derived from biological material that became fossilized millions of years ago?
A. non-renewable energy
B. fossil fuels
C. nuclear fuel
D. renewable energy
E. alternative energy
查看答案
Which of the following is a device that can be turned by water, wind, steam or exhaust gas from combustion that turns a generator in an electricity producing plant?
A. fan
B. combine
C. turbine
D. capacitor
E. motor
Which of the following organisms is the first to be adversely affected by thermal pollution in a stream?
A. trees along the bank
B. insect larvae in the water
C. large fish migrating upstream
D. birds drinking the H2O
E. bacteria in the water
Which of the following best describes the current state of the world's largest aquifer, the Ogallala Aquifer in the American Midwest?
A. It continues to decrease in volume as water is pumped for human uses.
B. It is recharging quickly as a result of increased rainfall.
C. It is recharging slowly but still faster than the water removal rate.
D. It is experiencing saltwater intrusion.
E. It is completely dried as a result of overpumping.
Three common methods employed in the cleanup of oil spills are
A. areation of water, skimmer boats, and genetically engineered bacteria.
B. aeration of water, phytoremediation, and genetically engineered bacteria.
C. skimmer boats, high temperature incineration, and phytoremediation.
D. large floating booms, high temperature incineration, and phytoremediation.
E. large floating booms, kimmmer boats, and genetically engineered bacteria.