Question

Low visibility during cold weather is due to _______.

• A. Formation of fossil fuels
• B. Ultraviolet radiations
• C. Lack of adequate power supply
• D. Unburnt carbon particles or hydrocarbons suspended in the air stick with water droplets.

Answer 1

The correct option is D

Unburnt carbon particles or hydrocarbons suspended in the air stick with water droplets.

The explanation for the correct answer:-

Option (D) Unburnt carbon particles or hydrocarbons suspended in the air stick with water droplets.

• Combustion of fossil fuels increases pollutants in the air.
• During cold weather water droplets also condense.
• When these dust and pollutants stick around the water droplets, smog(smoke+fog) is formed.
• Hence, the visibility is low during cold weather.
• Hence this is the correct option.

The explanation for the incorrect answer:-

Option (A) Formation of fossil fuels

• The formation of fossil fuels is a long process.
• And it happens under the ground ths it is not responsible for the low visibility.
• Hence it is the incorrect option.

Option (B) Ultraviolet radiations

• Ultraviolet radiations are also not responsible for air pollution.
• Hence it is the incorrect option

Option (C) Lack of adequate power supply

• Lack of power supply is also not responsible for low visibility.
• This is because smog is not formed due to a lack of power supply but is formed because of pollutants in the air.
• Hence it is the incorrect option.

So, option D is the correct answer.