Chlorine
Ozone
Nitrogen
Oxygen
Answer is Right!
Answer is Wrong!
The water pollution in river is measured by the dissolved amount of A. Chlorine B. Ozone C. Nitrogen D. Oxygen
The correct answer is D. Oxygen.
Oxygen is essential for aquatic life, and its presence in water is a good indicator of the water’s quality. Low levels of oxygen can lead to the death of fish and other aquatic organisms.
Chlorine is a disinfectant that is often used to treat drinking water. It can also be used to treat wastewater, but it can be harmful to aquatic life if it is not used properly.
Ozone is a gas that is formed when oxygen molecules are split by ultraviolet light. It can be harmful to aquatic life if it is present in high concentrations.
Nitrogen is an essential nutrient for plants and animals. However, too much nitrogen can cause problems in aquatic ecosystems, such as algae blooms.
In conclusion, the water pollution in river is measured by the dissolved amount of oxygen. Low levels of oxygen can lead to the death of fish and other aquatic organisms.