Question

which of the following statement is/are true? i. pollutants can be released into the environment by humans or as a result of a natural disaster. ii. primary pollutants are pollutants directly emitted from a process. iii. air pollution is severe in rural areas. either i or iii neither i or ii both i and ii i, ii, and iii

Explanation:

• Statement I: Humans release pollutants through industrial activities, etc. Natural disasters like volcanic eruptions can also release pollutants.
• Statement II: By definition, primary pollutants are directly emitted from a process.
• Statement III: Air pollution is generally more severe in urban areas due to industrial and vehicular emissions, not rural areas.

Answer:

Both I and II