1. Polar region
  2. Equatorial region
  3. Sub-Polar region
  4. Sub-Tropical region
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1 Answers

Answer: Option 2

Belt of Doldrums exists in Equatorial region. Doldrums, also called equatorial calms, equatorial regions of light ocean currents and winds within the intertropical convergence zone (ITCZ), a belt of converging winds and rising air encircling Earth near the Equator.

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