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 run off produced by factories. Pollutants damage the quality of air, water and land.
Answers: South-East part of Pokhara is opened and it has git the mountain in the southern part. That is why Pokhara receives the highest amount of rainfall in Nepal.
