A To ask governments to take stronger measures;
B To increase the sunlight reaching the Earth.
C To apply sunscreen to the Earth.
D To decrease greenhouse gases.
5. What is NOT true of the effectiveness of sunscreen,according to the last paragraph?
A It deflects sunlight reaching the Earth to counteract the warming.
B It blocks the incident energy in the suns rays.
C It is a controversial method.
D It decreases greenhouse gases in the atmosphere.
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