Question

Direct sources of pollutants that are easy to identify, monitor and control:

पर्याय

• Direct sources

• Primary sources

• Point sources

• Secondary sources

Answer 1

Point sources

Explanation:

• Point sources are specific, identifiable sources of pollution that discharge pollutants from a single, easily monitored location. Examples include factory smokestacks, sewage treatment plants, or discharge pipes from industrial plants. These sources are easy to identify, monitor, and control because they are localized and typically regulated by environmental agencies.
• Direct sources (a) and primary sources (b) refer to the origin of pollutants but may not always be easily identifiable or localized. Secondary sources (d) refer to pollutants formed indirectly through chemical reactions in the environment, such as ground-level ozone formed from vehicle emissions, which are harder to monitor and control.