Describe the major heat zones of the earth.

Heat Zones of the earth:
1. Torrid Zone:
- Torrid means hot.
- This zone receives the maximum amount of heat throughout the year, because the rays of the Sun fall vertically on this zone. - This zone is located between the Tropic of Cancer $\left(23{\frac{1}{2}}^{\circ }S\right)$.
2. Temperate Zone:
- The temperate zones lie in both the hemispheres.
- North temperate zone lies in northern hemisphere between Tropic of Cancer and Arctic Circle.
- South temperate zone lies in the southern hemisphere between the Tropic of Capricorn and Antarctic Circle.
- These zones are neither too hot nor too cold.

3. Frigid Zone:
- Frigid means cold.
- Beyond the Arctic Circle and Antarctic Circle temperatures are very low and the climate is very cold.
- This is due to the extreme slanting of the Sun's rays.
- The North Frigid Zone lies between the Arctic Circle $\left(66{\frac{1}{2}}^{\circ }N\right)$ and the North Pole in the Northern hemisphere.
- The South Frigid Zone lies between Antarctic Circle $\left(66{\frac{1}{2}}^{\circ }S\right)$ and the South Pole in the Southern hemisphere.