The correct answer is: d) All of the above.
Pollution from industries and agriculture is a threat to the health of rivers in all of the above areas.
In urban areas, pollution comes from a variety of sources, including sewage, industrial waste, and vehicle emissions. These pollutants can contaminate the water, making it unsafe for drinking, swimming, and fishing. They can also harm aquatic life and ecosystems.
In industrial zones, pollution is often caused by the release of hazardous chemicals into the air and water. These chemicals can cause a variety of health problems, including cancer, respiratory problems, and reproductive problems. They can also harm wildlife and ecosystems.
In intensively farmed regions, pollution is often caused by the use of pesticides and fertilizers. These chemicals can run off into waterways and contaminate the water. They can also harm aquatic life and ecosystems.
It is important to take steps to reduce pollution from industries and agriculture in order to protect the health of rivers and the people who live near them. Some of the things that can be done include:
- Investing in wastewater treatment plants
- Regulating the use of pesticides and fertilizers
- Promoting sustainable agriculture practices
- Raising awareness about the dangers of pollution
By taking these steps, we can help to ensure that our rivers are clean and healthy for future generations.