The correct answer is: d) All of the above.
Water pollution is a major concern in Bihar’s rivers due to industrial discharge, untreated sewage, and agricultural runoff.
Industrial discharge is a major source of water pollution in Bihar. Factories often dump their waste directly into rivers, without treating it first. This can contaminate the water with harmful chemicals and heavy metals.
Untreated sewage is another major source of water pollution in Bihar. Sewage is wastewater from homes and businesses that has not been treated to remove harmful bacteria and viruses. When sewage is dumped into rivers, it can cause serious health problems for people who come into contact with the water.
Agricultural runoff is also a major source of water pollution in Bihar. When farmers use fertilizers and pesticides on their crops, the runoff can carry these chemicals into rivers. This can contaminate the water and harm fish and other aquatic life.
All of these sources of water pollution are a major concern in Bihar. They can cause serious health problems for people who come into contact with the water, and they can also harm fish and other aquatic life. It is important to take steps to reduce water pollution in Bihar, so that the rivers can be clean and safe for everyone.
Here are some additional details about each of the sources of water pollution in Bihar:
- Industrial discharge: Factories often dump their waste directly into rivers, without treating it first. This can contaminate the water with harmful chemicals and heavy metals. Some of the most common pollutants found in industrial wastewater include lead, mercury, arsenic, and chromium. These pollutants can cause a variety of health problems, including cancer, reproductive problems, and developmental problems.
- Untreated sewage: Sewage is wastewater from homes and businesses that has not been treated to remove harmful bacteria and viruses. When sewage is dumped into rivers, it can cause serious health problems for people who come into contact with the water. Some of the most common diseases caused by sewage contamination include cholera, typhoid, and dysentery.
- Agricultural runoff: When farmers use fertilizers and pesticides on their crops, the runoff can carry these chemicals into rivers. This can contaminate the water and harm fish and other aquatic life. Fertilizers can cause algae blooms, which can block sunlight and suffocate fish. Pesticides can kill fish and other aquatic life, and they can also be harmful to people who eat fish that have been exposed to pesticides.