更多"As there is less and less coal and "的相关试题:
[简答题]Coal and oil which have been regarded as the chief resources in our daily life will soon be replaced by solar energy in the near future.
[单项选择]The trouble with such resources as coal，oil and gas ______ that they are not renewable．
A. has been
B. are
C. have been
D. is
[简答题]议论文
Fossil fuels, such as coal, oil, natural gas, are used in many countries, but in some countries, the use of alternative sources of energy, including wind and solar power, are encouraged. Is this trend a positive or a negative development
[单项选择]Scientists are ___ about the formation of coal.
A. confidential
B. confer
C. confident
D. conform
[简答题]We should not rely so heavily on oil, coal and uranium. They are overused. Coal and oil are irreplaceable. Uranium is also irreplaceable. (long sentence)
[单项选择](Few substances) lock less (alike than )coal and diamonds, yet both (are fashioned) (from same) elemental carbon.
A. Few substances
B. alike than
C. are fashioned
D. from same
[单项选择] Underground Coal Fires
Coal burning deep underground in China, India and Indonesia is threatening the environment and human life, scientists have warned. These large scale ______ (51) blazes (火焰) cause the ground temperature to heat up and kill surrounding vegetation, produce greenhouse gases and can ______ (52) ignite (点燃) forest fires, a group of scientists told the annual meeting of the American Association for the Advancement of Science in Denver . The resulting ______ (53) of poisonous elements like mercury can also pollute local water sources and soils, they warned.
“Coal fires are a global disaster,” said Associate Professor Glenn Stracher of East Georgia Collage in Swainsboro, USA. But ______ (54) few people know about them.
Coal can heat up on its own, and eventually catch fire and burn, if there is a continuous oxygen supply. The heat produced is not caused to ______ (55) and under the right combinations of sunlight and oxy
A. release
B. paste
C. consumption
D. elimination
