Hypothesize about human impact on each of earths systems

Humans have a great impact on the earth's system. The activities that humans carry out on earth affecting the system are as follows-

1) Cutting down trees for settlement purposes and commercial use has led to an extensive decrease in soil fertility.

2) Mining activities and setting up industries and factories has released a huge amount of toxic gases into the atmosphere polluting the environment.

3) Overhunting of animals leads to the reducing number of living species.

4) Construction of dams and power plants.

5) Burning up of fossil fuels.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

a. the production of carbon dioxide through the process of photosynthesis