Each minute earth receives about 2cal of heat energy per square centimeter form sun This is called solar constant S the value of

Question

Each minute earth receives about 2cal of heat energy per square centimeter form sun This is called solar constant S the value of solar constant in S l unit is A C D 8 kW m 2 1 4 kWm 1 8 kWm 2 2 5 kWm 2

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