- Wetlands are not a major source of freshwater pollution.
- Pesticides are most likely to be found in runoff from farm fields.
- An estuary is a river that flows into a larger river.
What is Pollution?
Pollution may be defined as any form of unwanted substances or impurities which are present in the atmosphere of the earth that harm the lives of living entities.
Human and animal wastes, industrial wastes, and agricultural chemicals are potent sources of freshwater pollution.
Pesticides are generally spread in the agricultural fields to protect the crop from pathogens and are most likely to be found in runoff from farm fields during the rainy season.
An Estuary is a mini-ecosystem in which freshwater meets the marine water near the sea.
Therefore, it is well described above.
To learn more about Estuaries, refer to the link:
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