Most species in the world go extinct because

Options :
  1. of new diseases spread by human contanct
  2. humans harvest them or kill them as pests
  3. of loss of habitat
  4. global climate change is causing their environments to rapidlychange
Answer and Explanation :-

Answer: Option 3




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Without science, there would be no such hope.
-Kay Redfield Jamison An Unquiet Mind: A Memoir of Moods and Madness