Consider the following statements:

1.An aerosol is a suspension of fine solid particles or liquid droplets in air or another gas

2.Aerosols can be natural or anthropogenic

ABoth statements 1 and 2 are true ✓ Correct

BOnly statement 1 is true

COnly statement 2 is true

DBoth statements are false

Correct answer: (A) Both statements 1 and 2 are true

Explanation

Statement 1 is correct, as an aerosol is a suspension of fine solid particles or liquid droplets in air or another gas.

Statement 2 is correct, since aerosols can be either natural or human-made in origin.

Natural aerosols include sea spray, dust, volcanic ash and pollen.

Human-made aerosols come from combustion, industry and vehicle exhaust.

Both statements therefore hold true.

Some aerosols cool the climate by reflecting sunlight back to space.

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