According to the lectures, what good can the greenhouse effect bring to the earth? （ ）
A: It helps the earth to keep warm so that it would not be too cold to support life.
B: It helps the pants to get more oxygen.
C: It helps the earth to keep regular rotation.
D: It shields the radiation from the outer space.
A: It helps the earth to keep warm so that it would not be too cold to support life.
B: It helps the pants to get more oxygen.
C: It helps the earth to keep regular rotation.
D: It shields the radiation from the outer space.
举一反三
- 2. What causes the Earth to be warmer according to the video clip? A: The atmosphere. B: The greenhouse gases. C: The sunbeams. D: The radiation from the outer space.
- Without greenhouse gases, the heat radiated from the Earth's surface<br/>would____. A: remain where it is B: warm up the Earth C: escape to space
- The method in which the greenhouse effect takes place is by A: gamma radiation from the earth is absorbed into the atmosphere by particulates B: beta radiation from the Sun is absorbed by water vapor C: ultraviolet radiation from the Sun is absorbed by ozone D: infrared radiation from the Earth's surface is absorbed by multiple gases in the atmosphere E: cosmic radiation from deep space is absorbed by gases in the atmosphere
- What is great about the space trip as mentioned in the passage? A: It helps scientific research. B: It is an exciting adventure. C: You can have a spacewalk. D: You can see the outer space.
- True or False: If the Earth's atmosphere did not have the Greenhouse Effect, the Earth would be much warmer. A: True B: False