The three different heat zones of the earth are- Frigid zone, Temperate Zone, Torrid Zone.
The equivalent of cold hardiness zones in high temperatures are heat zones. The country is divided into twelve numbered zones on a "Plant Heat Zone Map" created by the American Horticultural Society (AHS).
Different divisions of the earth are used by geographers. The division of the Earth into bands that run parallel to the equator is one of the most common division methods. These several bands contribute to the explanation of the local climate. The many regions of our world where the sun's rays strike at various angles are referred to as the Earth's heat zones.
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