Nonpoint source pollution comes from several locations. If they cannot find the origin of the pollution it can be almost impossible to regulate. Or they may not have enough funding.
Answer:
Why do we wear white or light coloured clothes in summer?
- We wear white or light coloured clothes in summer because white coloured clothes reflect most of the sun's heat and absorb very little of the sun's heat and keeps our body cool.
Why do we wear black or dark coloured clothes in winter?
- We wear black or dark coloured clothes in winter because black coloured clothes absorb most of the sun's heat and keep our body warm.
Explanation:

I think the Belt of the inter-tropical convergence zone is the general part of the general circulation found on the doldrums. This is a belt of low pressure which circles the Earth generally near the equator where the trade winds of the Northern and southern Hemispheres converge. Mainly characterized by convective activity which generates often vigorous thunderstorms over large areas.
Organisms are classified into domains and kingdoms based on their cell type, their ability to make food, and the number of cells in their bodies.
Hope this helped :)
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.