Answer:
Human can play the following roles to balance nature:
- We can decrease the burning of fossil fuels so that less pollution is produced.
- Family planning will reduce overpopulation to some extent.
- We should try not to cut trees so that the trees are safe and the habitats of animals aren't destroyed.
- There should be certain organizations set up that encourage people to plant more trees.
- The water that is not drinkable should be converted to drinkable water by several means.
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