Preventing the atmosphere—stopping ozone depletion and the greenhouse effect—is an environmental necessity.
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