What is the difference between tropical and temperate climates is mainly the result of?

Tropical regions lie between the Tropic of Cancer in the Northern Hemisphere and between the Tropic of Capricorn in the Southern hemisphere. Whereas, Temperate regions lie between Middle latitudes and the polar regions.

The tropical atmosphere is a non- arid climate, which indicates that temperature in all twelve months remains at least 18 degrees Celsius. Only two seasons (Wet and Dry) can be seen in the tropical climate zones. The temperature of the polar regions are relatively moderate and characterized by great changes in temperature between Summer and Winter. Therefore, most of the places with a temperate climate have four seasons as summer, winter, autumn and spring.  

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