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1. |
In the context of the passage how can LED play a vital role in the climatic change? |
A. | By reduction of CO2 in the atmosphere |
B. | By reduction of the heat emission in atmosphere |
C. | By helping Ozone layer from getting depleted |
D. | By preventing industries from releasing poisonous gases into atmosphere |
E. | All of the above |
Answer» B. By reduction of the heat emission in atmosphere | |