Question

What do you mean by climatic regions or heat zones

Answer 1

Climate Zone: are divisions of the Earth's climates into general climate zones according to average temperatures and average rainfall. The three major climate zones on the Earth are the polar, temperate, and tropical zones. Temperatures in these three climate zones are determined mainly by the location, or latitude, of the zone.

Polar zone-  has the coldest with temperatures almost always below freezing.  

Temperate zone-  contains most of the Earth’s land masses with more moderate temperatures and rainfall year-round.  

Tropical zone-  has the warmest average temperatures and gets the most rain.