Which of the four greenhouse gases mentioned in the passage has the shortest atmospheric lifetime? A. CO2 B. CH4 C. N2O D. CFCs 相关知识点: 试题来源: 解析 B 正确答案:B 解析:本题为细节题。根据文章可知:二氧化碳可能会持续影响气候数千年,甲烷在空气中大概会停留12年,一氧化二氮在大气中能...
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Four gases which cause greenhouse effect are shown with their percentage of effect. Write the major source of each of A, B C and D.
Driving a car or using electricity is not wrong.We just have to be smart about it.Some people use less energy by carpooling.For example,four people can ride together in one car instead of driving four cars to work.Whenever we use electricity,we put greenhouse gases (气体) into the air....
Over the past 20 years, all the trends in the sun thatcould have had an influence on Earth's climate have been in the opposite direction to that requiredto explain the observed rise in global mean temperatures.Most scientists say emissions of greenhouse gases, mainly from burning fossil fuels...
The utility model relates to a four-main-grid-line type solar cell module, which comprises a four-main-grid-line type solar cell module laminate, a one-component silica gel, an aluminum alloy frame and a wiring box. The four-main-grid-line type solar cell module laminate is successively ...
19. Paragraph __4__ Greenhouse Gases as the Main Factor of Global Warming 温室气体是全球变暖的主要因素 20. Paragraph __5__ Observations of Warming in the Northern Hemisphere 北半球变暖的观察 A. Soot's Role in Climate Changes Above Oceans and Land 煤烟在海洋和陆地上气候变化中的作用 B. Obs...
environment getting worse and the enhancement of people’s sense of environmental protection,there is a trend that more people choose the low-carbon lifestyle which stands for health,nature and safety.It means living at a lower cost,that is,we will produce less greenhouse gases and sa...
Car account for ___ the greenhouse gases in the US. A.50%B.40%C.25%D.14% 点击查看答案&解析手机看题 单项选择题 Questions 11o 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.Now listen to the passage.What ...
So, given that the problem that we have is the 42 in the concentration of carbon dioxide and other greenhouse gases in the atmosphere, trees are a vital part of it. The 43 of trees that we've experienced over the past few decades and centuries has been a major contributor to creating ...