Estimation of Particulate Pollutants in Air — Important Questions

Pollen grains, Fly ash, Coal dust, Cement dust

Pollen grains, fly ash, coal dust, and cement dust are all solid particles that can be suspended in air as particulate matter. Oxygen gas is a gaseous component of air, not particulate matter.

True

This is true. Higher concentration of particulate matter acts as a barrier that prevents solar radiations from reaching the Earth's surface, affecting the planet's energy balance.

Terrace, Window sill, Kitchen, Inside a drawer, Garden

All these locations are mentioned in the methodology as suitable places to keep slides for comparing particulate matter deposition in different environments.

True

This is true. Particulate matter prevents heat from escaping the Earth's surface, which combined with blocking solar radiation, contributes to global warming.