Why is species diversity generally highest in the tropics?

Why is species diversity generally highest in the tropics?
  1. They provide a relatively constant environment
  2. They receive more solar energy
  3. They have had more evolutionary time
  4. All of the above

Solution

The species diversity in the tropics is generally highest because they had more evolutionary time, provide a relatively constant environment, and receive more solar energy.

Asked in: NCERT

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