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.
A: They directly threaten human beings.
B: They can be easily protected.
C: They are not easily reversible.
举一反三
- 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
- 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
- Preventing the atmosphere—stopping ozone depletion and the greenhouse effect—is an environmental necessity.
- By the second sentence of Paragraph 2, the author means to show that ______. A: pigs attack human beings more frequently than sharks B: people get hurt much more easily in a car accident C: people get killed more easily by pigs or car accident than by sharks D: sharks rarely kill human beings when they are not provoked to do so