how are the human beings disturbing the balance of nature

Dear student,

Human beings are disturbing ​​​the balance of nature in the following ways :
1) Urbanization and Deforestation - ​​​​For development of land and road constructions, humans have been destroying the nature.
2) Pollution created by vehicles and industries has caused imbalance in the environment. 
3) Wild animals killed by the poachers has somehow led to the imbalance in ecosystem.

Regards