Humans have contributed to habitat destruction by

Options :
  1. clearing land and use of chemicals for farming
  2. producing green house gases through use of fossil fuels
  3. exploitation of land and water for mining of scare resources
  4. all the above
Answer and Explanation :-

Answer: Option 4

Explanation:

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The difference we wanna make is number one to let these kids know that they're not alone, that they're actually not that messed up and that they can do whatever they want they can express themselves however they want, without being persecuted or called a faggot or some kind of racist thing. You know, really just to get people to get over their stuff so they can live.
-Gerard Way