Question

What is the extent of torrid zone

Answer 1

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It is the largest of the thermal zones. It covers, almost half the area of the earth’s surface. It is situated between the Tropic of Cancer (23½°N) and Tropic of Capricorn (23½0 South) (See fig 13.1).

The sun’s rays are almost vertical throughout the year in this zone.

THE mid-day sun is overhead at equator on equinoxes, i.e. on 21 st March and 23rd September. It is also overhead at Tropic of Cancer on 21st June and at Tropic of Capricorn on 22nd December.

The duration’s of day and night are always equal 12 hours each on the equator and they increase to 13 hours 27 minutes at tropics.

The range of temperature is lowest at the equator and it increases towards the tropics.