Important parallels of latitude Beside, The North Pole (90° N) and The South Pole (90° S) there are five important parallels of latitudes on Globe . 1. The Equator (0°) 2. The Tropic of Cancer (23 1/2° N) 3. The Tropic of Capricorn (23 1/2° S) 4. The Arctic Circle (66 1/2° N) 5. the Antarctic Circle (66 1/2° S) Heat zone of the Earth There are three heat zone present on the earth surface. 1. Torrid Zone 2. Temperate Zone and 3. Frigid Zone 1. Torrid Zone - Torrid means hot. This area is between Tropic of Cancer and Tropic of Capricorn. Therefore this area receives maximum heat of Sun and called the Torrid Zone. The mid-day sun is exactly overhead at least once a year on all latitudes . 2. Temperate Zones – Temperate means moderate. There are two Temperate Zone present on the Earth surface . (i) Northern hemisphere’s Temperate Zone - This area is present between Tropic of Cancer (23 1/2° N) and Arctic Circle (66 1/2° N). (ii) Southern hemisphere’s Temperate Zone - Thi