Select text from the following paragraphs.(and go live with the thought)

Pollution is defined as unwanted chemical or physical materials in an area that negatively impacts the environment. This is caused by waste materials, which can be gas, liquid, solid or any other form of pollution. Pollution can cause adverse effects on the environment and have significant consequences.

Pollution is a term that covers all the ways pollutants get into the air and cause damage to nature or all living beings. It can be produced from natural and artificial sources like volcanoes, forest fires, earthquakes, industrial wastes, pesticides, insecticides etc. Pollution can cause respiratory problems, heart diseases, lung cancer etc.