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The greenhouse effect appears when ________.
选项：

A: the radiant heat from the sun is not able to reach the earth ;
B:the "greenhouse gases" become less in the atmosphere;
C:the earth is getting warmer;
D: the earth is no longer cold

发布时间：2024-04-25 22:01:41

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1.Which of the following is true about greenhouse gases? 选项： A: The greenhouse gases prevent radiation from the Sun to pass through the atmosphere. B: The greenhouse gases allow radiation from the Sun to heat the earth. C: The greenhouse gases allow radiation from the Sun to go back into space.
2.Greenhouse gases trap energy in the atmosphere and make the Earth warmer.
3.True or False: If the Earth's atmosphere did not have the Greenhouse Effect, the Earth would be much warmer.
4.Which of the following is NOT true（）选项： A、Burning too much coal and oil produces lots of greenhouse gases. B、It has become warmer on the earth now than in the past. C、Gases put into the atmosphere now will affect the earth years later. D、The temperature in a greenhouse is as high as that in the atmosphere.
5.As we have learned, these greenhouse gases trap energy in the atmosphere and make the Earth warmer.
6.True or False: If the Earth's atmosphere did not have the Greenhouse Effect, the Earth would be much warmer. A: True B: False
7.The greenhouse gases in the atmosphere of earth contains .(List 3 kinds)
8.The accumulation of greenhouse gases (GHGs) causes global warming by letting sunlight into the atmosphere as _______. Then, when the earth re-radiates the heat back to space, the gases trap the energy in the form of outgoing ______.
9.2. What causes the Earth to be warmer according to the video clip?选项： A:The atmosphere.; B:The greenhouse gases.; C:The sunbeams.; D:The radiation from the outer space.
10.The tapping of heat by the atmosphere is generally refterred to as what? 选项： A: Earth'senergy balance B: reflectivity C: albedo D: the greenhouse effect
11. As we have learned, these greenhouse gases trap energy in the atmosphere and ____ the Earth warmer. 选项： A:makes B:make C:made D:making
12.Without the greenhouse gases, the earth would 选项： A、become warmer. B、be much colder. C、move more slowly. D、move quickly.
13.Climate change may be a big problem, but there are many little things we can do to make a difference. If we try, most of us can do our part to reduce the amount of greenhouse gases that we put into the atmosphere. Many greenhouse gases come from things we do every day. As we have learned, these greenhouse gases trap energy in the atmosphere and make the Earth warmer.
14. Which statement is FALSE? 选项： A: Greenhouse effect is harmful to life on Earth B: Water vapor (H2O.contributes the most to the greenhouse effect. C: Both natural and anthropogenic sources can emit greenhouse gases into the atmosphere. D: Ozone is a greenhouse gas. E: One of the consequences of global warming is the elevation of sea level
15.As we have learned, these greenhouse gases trap energy in the atmosphere and make the Earth warmer. 选项： A: 如我们所知, B: 我们要学习, C: 我们要学习, D: 如我们所知,
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17.The increased ______ of greenhouse gases have prevented additional thermal radiation from leaving the earth. 选项： A:concentrations B:intensity C:seriousness D:gravity
18.According to the team of international researchers based at Beijing Normal University, the rise of the Earth's temperature is likely to cause .选项： A:the coming of ice age B:less intense hurricanes C:more Katrina-like or worse hurricanes D:more greenhouse gases in the atmosphere
19.If the assumption about the delay of a new Ice Age is correct ______. 选项： A、the best way to overcome the cooling effect would be to burn more fuels B、lee would soon cover the northern hemisphere C、the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly D、the greenhouse effect could work to the advantage of the earth
20.True or False: Even if we stop emissions of greenhouse gases today, the Earth would continue to warm. A: True B: False

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The greenhouse effect appears when ________.选项： A: the radiant heat from the sun is not able to reach the earth ; B:the "greenhouse gases" become less in the atmosphere; C:the earth is getting warmer; D: the earth is no longer cold

The greenhouse effect appears when ________.
选项：

A: the radiant heat from the sun is not able to reach the earth ;
B:the "greenhouse gases" become less in the atmosphere;
C:the earth is getting warmer;
D: the earth is no longer cold