Explanation:
Solar radiation is not a source of particulate matter. Particulate matter (PM2.5 and PM10) is emitted from vehicle exhaust, industrial processes, burning of fossil fuels, construction, and natural sources like dust and smoke.
Explanation:
The correct order of atmospheric layers from the Earth's surface upwards is Troposphere (0-12 km), Stratosphere (12-50 km), Mesosphere (50-85 km), Thermosphere (85-600 km), and Exosphere (above 600 km).
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