The minimum values of annual receipts of solar radiation occur at

the equator
the tropics
the arctic
None of the above

The correct answer is D. None of the above.

The minimum values of annual receipts of solar radiation occur at the poles. This is because the Earth’s axis is tilted at an angle of 23.5 degrees relative to its orbital plane. This means that the sun’s rays are more direct at the equator than at the poles. As a result, the equator receives more solar radiation than the poles.

The tropics are located between the Tropic of Cancer and the Tropic of Capricorn. The Tropic of Cancer is located at 23.5 degrees north latitude, and the Tropic of Capricorn is located at 23.5 degrees south latitude. The tropics receive more solar radiation than the polar regions, but less than the equator.

The Arctic is located north of the Arctic Circle, and the Antarctic is located south of the Antarctic Circle. The Arctic Circle is located at 66.5 degrees north latitude, and the Antarctic Circle is located at 66.5 degrees south latitude. The Arctic and Antarctic receive the least amount of solar radiation of any region on Earth.