Question

how does cutting down of trees polluted the environment

Answer 1

 Causing a rise in the global temperature, deforestation affects the air that we breathe. This is because all trees take in carbon dioxide and other pollutants which are known to cause a lot of problems in the atmosphere.

Answer 2

Trees remove some of this carbon dioxide from the air through photosynthesis and store that carbon in their tissues and in the soil. ... Deforestation reduces the removal component of this cycle, further increasing the carbon dioxide in the air. This results in an increase in temperature, an effect known as global warming.