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2. Greenhouse gases are the gases absorbs and emits radiant energy within the thermal infrared range, which cause the .
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发布时间：2022-01-07
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更多“2. Greenhouse gases are the ga…”相关的问题
第2题
Scientists hold that we should ________ to slow the greenhouse effect.
A、produce less of the greenhouse gases
B、use only petrol, oil, natural gas
C、use wind, water and geothermal power only
D、stop using things that produce greenhouse gases
第6题
According to the passage, Greenhouse gases do NOT include _______.A．carbon dioxideB．methan
According to the passage, Greenhouse gases do NOT include _______.
A．carbon dioxide
B．methane
C．nitrous oxide
D．fossil fuels
第7题
Factory emission of greenhouse gases is a form of _____.
A、water pollution
B、air pollution
C、land pollution
D、light pollution
第8题
A greenhouse is a building made of glass which is used for keeping plants warm when the ou
tside temperature is how. In a similar way there are several gases in the atmosphere which trap(捕捉) the heat produced by the sun and prevent it from escaping. These gases are known as" greenhouse gases", and the way in which they trap heat in the atmosphere is called the "greenhouse effect". This is not simply air pollution. Most of the main greenhouse gases exist naturally in small amounts in our atmosphere. And without them earth would be 30 degrees colder and human life would not exist. In other words, the greenhouse effect is a natural course which is to some degree helpful to us.
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The problem is that in the last century and a half, we have been putting too many of these gases into the earth’s atmosphere by burning large quantities of coal and oil and by cutting down forests. The rapid increase in greenhouse gases is making the world warmer. Tile world's temperature has already gone up by half a degree this century, and the sea level has risen by 10 centimetres. If the amount of carbon dioxide(二氧化碳) in the atmosphere doubles, there will probably be a rise in the earth's temperature of between 1 and 4 degrees. This may seem a small increase, but it would be enough to cause major changes in geography and agriculture. Large areas of the world would be flooded, and some areas would become dry and unable to produce crops. It is important, too, to consider that there may be a delay of about 30 years in the greenhouse effect. This means that we're probably experiencing only now the effect of the gases put into the atmosphere before the 1960s. Since then, our use of these gases has greatly increased.
"Greenhouse effect" means ______.
A．the way in which gases are used for keeping plants warm
B．a natural course which is to some degree helpful to us
C．the way" greenhouse gases trap heat on the earth
D．the whole course in which greenhouse gases prevent heat
第9题
Burying greenhouse gases under the sea is not possible.A．真B．假C．NOT GIVEN
Burying greenhouse gases under the sea is not possible.
A．真
B．假
C．NOT GIVEN
第11题
Without the greenhouse gases, the earth wouldA．become warmer.B．be much colder.C．move more
Without the greenhouse gases, the earth would
A．become warmer.
B．be much colder.
C．move more slowly.
D．move quickly.
