Question

Why does the extraterrestrial radiation received by earth vary throughout the year?

a.

Because earth’s orbit is circular

b.

Because of radiation losses when travelling through ether

c.

Because of radiation losses when travelling through vacuum

d.

Because earth’s orbit is elliptic

Posted under Renewable Energy

Answer: (d).Because earth’s orbit is elliptic

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Q. Why does the extraterrestrial radiation received by earth vary throughout the year?

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