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Most of the air pollution that we experience is located in:

HPPSC · 2022 · GS1
Question:
Most of the air pollution that we experience is located in:

Options

(1) Mesosphere
(2) Thermosphere
(3) Stratosphere
(4) Troposphere
Answer: (4) Troposphere

Explanation:
The troposphere is the lowest layer of Earth's atmosphere, extending from the surface to about 12 km altitude. It is where all weather phenomena occur and where virtually all human activities take place. Most air pollution — including particulate matter, ground-level ozone, carbon monoxide, sulphur dioxide, and nitrogen oxides from vehicles, industries, and burning — is concentrated in the troposphere. The troposphere contains about 75–80% of the total mass of the atmosphere.

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