Aerosol

Aerosols are particles suspended in a gas, with examples like smoke and smog. They are mostly natural, with only 10% being man-made. Aerosols are crucial for cloud formation as they provide a surface for water droplets to form. They also affect the global climate by reflecting sunlight back into space.

Which of the following is an example of an aerosol?

• Rain

• Smoke

• Fog

• Dust

What percentage of aerosols are naturally occurring?

• 100%

• 10%

• 90%

• 50%

Which of the following is NOT a natural source of aerosols?

• Sea spray

• Volcanoes

• Forest fires

• Industrial emissions

What is the primary role of aerosols in cloud formation?

• They absorb sunlight.

• They reduce air pressure.

• They provide a surface for water droplets to form.

• They increase the temperature.

How do aerosols affect global climate?

• By trapping heat in the atmosphere

• By reflecting sunlight back into space

• By absorbing sunlight

• By increasing greenhouse gases