Substances causing harm to aquatic ecosystems are classified as which major category?

Substances causing harm to aquatic ecosystems are classified as which major category?

• A. Major Water Pollutants
• B. Biodegradable Wastes
• C. Heavy Metals
• D. Thermal Pollution

Answer: (A)

Substances that harm aquatic ecosystems are pollutants, and the broad category used to group all of them is water pollutants. This umbrella category includes anything that degrades water quality and harms organisms or ecosystem functions, from organic matter and chemicals to nutrients, metals, sediments, pathogens, and heat. The other options refer to specific kinds of pollutants (biodegradable wastes, heavy metals, or thermal pollution), but they are not the broad, overarching category. Therefore, Major Water Pollutants is the best answer because it encompasses all substances that negatively impact aquatic environments.

Substances that harm aquatic ecosystems are pollutants, and the broad category used to group all of them is water pollutants. This umbrella category includes anything that degrades water quality and harms organisms or ecosystem functions, from organic matter and chemicals to nutrients, metals, sediments, pathogens, and heat. The other options refer to specific kinds of pollutants (biodegradable wastes, heavy metals, or thermal pollution), but they are not the broad, overarching category. Therefore, Major Water Pollutants is the best answer because it encompasses all substances that negatively impact aquatic environments.