Consider the following: 1. Sea spray 2. Mineral dust 3. Sulfate aerosols 4. Volcanic ash How many of the above are considered primary aerosols? |ForumIAS

Q. Consider the following:
1.Sea spray
2.Mineral dust
3.Sulfate aerosols
4.Volcanic ash
How many of the above are considered primary aerosols?

[A] Only one

[B] Only two

[C] Only three

[D] All four

Answer: C

Notes:

Explanation:

Primary aerosols: Sea spray, mineral dust, and volcanic ash are emitted directly into the atmosphere.
Sulfate aerosols are secondary aerosols, formed through chemical reactions involving sulfur dioxide (SO₂) in the atmosphere rather than being emitted directly.

Source- PIB