Answer :
I will explain in an example a good change would be A group of kids planting trees this could make a food source for plant eating animals and it also would create more oxygen
A harmful one would be cutting down trees to make a new mall, This is the exact opposite of the one above, less food for plant or leave eating animals and less oxeygen
A harmful one would be cutting down trees to make a new mall, This is the exact opposite of the one above, less food for plant or leave eating animals and less oxeygen
