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5. The atmosphere is heated mainly by (a) insolation(b) terrestrial radiation(c) global warming(d) ultraviolet rays6. Warm air rising from the earth's surface is replaced by cool air from above, causing currents thattransfer heat upward by(a) conduction(b) convection(c) insolation(d) global warming7. Pick the greenhouse gas.(a) carbon dioxide(b) oxygen(c) nitrogen(d) all of these​

Answer» Q6. the ANSWER is OPTION (a) conductionQ7. the answer is option (a) CARBON dioxidelike


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