举一反三
- The main environmental problems of the world except:() A: Greenhouse effect B: Species extinction C: Ozone layer Depletion D: Soil erosion
- According to Paragraph 5, why are ozone depletion and the greenhouse effect considered as urgent human disasters?
- Answer the following question. [br][/br] According to Paragraph 5, why are ozone depletion and the greenhouse effect considered as urgent human disasters
- According to paragraph 5,why are ozone depletion and the greenhouse effect considered as urgent human disasters? A: They directly threaten human beings. B: They can be easily protected. C: They are not easily reversible.
- Which of the following belongs to the environmental impact associated with "input" A: Ozone depletion B: Depletion of fossil fuels C: Acid rain D: Toxicity in human beings
内容
- 0
Which of the following is NOT the reason for the greenhouse effect A: Uncontrolled development. B: A warming atmosphere at a global level. C: Sunlight reaches the forest floor, dries plants and lights fires. D: No limits on logging and bad fire preventing efforts.
- 1
Which of the following environmental problems is the article talking about A: Acid rain. B: Ozone depletion. C: Deforestation. D: The greenhouse effect.
- 2
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
- 3
True or False: If the Earth's atmosphere did not have the Greenhouse Effect, the Earth would be much warmer. A: True B: False
- 4
What happens to the ozone layer when CFCs are introduced into the atmosphere?