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Coal bu"的相关试题:
[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. house
B. underground
C. sky
D. water
[单项选择]
Underground Coal Fires -- a Looming Catastrophe
Coal burning deep underground in China, India and Indonesia is threatening the environment and human life, scientists have warned. These large-scale underground blazes cause the ground temperature to heat up and kill surrounding vegetation, produce greenhouse gases and can even ignite forest fires, a panel of scientists told the annual meeting of the American Association for the Advancement of Science in Denver. The resulting release of poisonous elements like arsenic and mercury can also pollute local water sources and soils, they warned.
"Coal fires are a global catastrophe," said Associate Professor Glenn Stracher of East Georgia College in Swainsboro, USA. But surprisingly 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 disappear and under the right combinations of sunli
A. Annual consumption of coal in US.
B. Annual consumption of coal in China.
C. How long coal fires has lasted in the northern region of China.
D. Coal fires can have an impact on the environment.
[单项选择]Underground Coal Fires -- a Looming Catastrophe
Coal burning deep underground in China, India and Indonesia is threatening the environment and human life, scientists have warned. These large-scale underground blazes cause the ground temperature to heat up and kill surrounding vegetation, produce greenhouse gases and can even ignite forest fires, a panel of scientists told the annual meeting of the American Association for the Advancement of Science in Denver. The resulting release of poisonous elements like arsenic and mercury can also pollute local water sources and soils, they warned.
"Coal fires are a global catastrophe," said Associate Professor Glenn Stracher of East Georgia College in Swainsboro, USA. But surprisingly 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 disappear and under the right combinations of sunlight and oxygen, can trigg
A. underground fires loom large in the forests.
B. coal burning deep underground is found in China.
C. poisonous elements released by the underground fires can pollute water sources.
D. arsenic and mercury are the most poisonous elements to water sources.
