Why is the earth divided into tropical, temperate and tropical regions?

The degree of light and temperature impact of objects is related to the lighting angle. The sun's lighting angle has created a hot, warm, cold temperature (tropical, temperate, and tropical) in different regions of the world.

The degree of light and temperature impact of objects is related to the lighting angle. If you stand in front of a burning oven, you will feel very hot; but if you stand opposite the door, you won't feel hot anymore.

Picture 1 of Why is the earth divided into tropical, temperate and tropical regions?
Try doing an experiment: turn on the table lamp, then remove the lampshade, you place the globe 1 meter from the table lamp (paying attention to the center of the globe to be concentric with the center of the table lamp). After that, you will carefully observe that the light level on the globe will be divided into many areas, especially "equatorial region" and the nearby vicinity will be brightest; The longer you go south or north the light will gradually darken.

This proves that the direct sunlight will be the hottest place; places where sunlight is shining will have a lower temperature. This also shows that the sun's lighting angle has created a hot, warm, cold temperature (tropical, temperate, and tropical) in different regions of the world. Not only that, derived from the convenience of scientific research, meteorologists and geographers also divide the "zones" more meticulously.

Update 16 December 2018
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