Question

define pollution.how does air get polluted?​

Answer 1

Explanation:

Pollution is the introduction of harmuful contaminants into the natural environment. The harmul gases from vehicles , harmful or excessive quantities of substances including gases and particles are introduced to the Earth's atmosphere

Answer 2

Answer:

Pollution is the introduction of contaminants into 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's

Explanation:

Air get polluted by foctories produce highly poisonious gas, by ait form vehicles etc

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