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Tropical regions are rich in biodiversity. Why?

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  • The reasons for the richness of biodiversity in the Tropics are:
  • Warm tropical regions between the tropic of Cancer and Capricorn on either side of equator possess congenial habitats for living organisms.
  • Environmental conditions of the tropics are favourable not only for speciation but also for supporting both variety and number of organisms.
  • The temperatures vary between 25°C to 35°C, a range in which most metabolic activities of living organisms occur with ease and efficiency.
  • The average rainfall is often more than 200 mm per year.
  • Climate, seasons, temperature, humidity, photo periods are more or less stable and encourage both variety and numbers. .
  • Rich resource and nutrient availability.

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