7. What do you understand by Pollution?
Answers
Answered by
1
Answer:
Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories.
Answered by
0
Answer:
the action of making water and air dirty or dangerous is called pollution
Similar questions