What are Tropical temperate and polar climate zones caused by?

Answer 1

Latitude - which correlates to the angle of the sun in the sky (at noon);

or ergs per square meter received.

Answer 2

Tropical climate zones are caused by the direct sunlight near the equator, resulting in consistent warm temperatures. Temperate climate zones are caused by the Earth's tilt, creating distinct seasons with moderate temperatures. Polar climate zones are caused by the polar regions receiving minimal sunlight due to their high latitudes, resulting in cold temperatures.