Question

introduction on pollution

Answer 1

Pollution is the introduction of contaminantsinto the natural environment that cause adverse change.[1] Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution. In 2015, pollution killed 9 million people in the world.

Answer 2

pollution is a one of the most harmful in this world it is caused by cutting trees, etc