Home
Class 9
BIOLOGY
Low visibility during cold weather is du...

Low visibility during cold weather is due to

A

formation of fossil fuel

B

unburnt carbon particles or hydrocarbons suspended in air

C

lack of adequate power supply

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B

The combustion of fossil fuels increases the amount of suspended particles in air. These suspended particles could be unburnt carbon particles (i.e., hydrocarbons). Presence of high levels of these pollutant cause visibility to be lowered, especially in cold weather when water also condenses out of air. This is known as somg and it is a visible indication of air pollution.
Promotional Banner

Topper's Solved these Questions

  • NATURAL RESOURCES

    NCERT EXEMPLAR ENGLISH|Exercise Short Answer Type Questions|19 Videos
  • NATURAL RESOURCES

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|7 Videos
  • IMPROVEMENT IN FOOD RESOURCES

    NCERT EXEMPLAR ENGLISH|Exercise Short Answer Questions|21 Videos
  • THE FUNDAMENTAL UNIT OF LIFE

    NCERT EXEMPLAR ENGLISH|Exercise Long Answer Type Questions|7 Videos

Similar Questions

Explore conceptually related problems

All alkali halides are soluble in water except LiF. The low solublity of LiF in water is due to its (i)______ the low solubility of CsI is due to (ii)_____. LiF is soluble in (iii)_________ solvents.

Why is it that during changing weather, one is advised to avoid closed, crowded and air conditioned places like cinema halls etc?

The rainbow formed after or during the rain is due to

Iron articles get rusted on weathering due to the formation of

The high reactivity and low volatility of white phosphorous is due to:

Assertion : Photochemical smog is mainly composed of nitrogen oxides, volatile organic compounds, ozone and peroxyacyl nitrates. Reason : Photochemical smog develops in cold weather conditions by the interaction of secondary pollutants.

Stomata open during day due to

Explain why the water pipes are covered with cotton during very cold weather ?