Consider the following statements with respect to black carbon BC 1 Black Carbon is t...........

Environment and Ecology Envirnment and Climate Change

Download Solution PDF

Consider the following statements with respect to black carbon (BC):

1. Black Carbon is the strongest gaseous absorber of sunlight.

2. It is commonly known as soot emitted from biomass burning, diesel exhaust etc. sources.

3. Black Carbon adversely affects monsoons and cloud formation.

4. Black carbon has atmospheric lifetime ranging from few days to weeks.

Which of the above statements is/are correct?

1, 2 and 3

2, 3 and 4 only

2 and 4

1 and 3 only

छोटे Courses बड़े Results

Master Envirnment and Climate Change

Prepare through Micro-courses

Try Now

Explanation:

Black carbon is a major component of soot and is produced by incomplete combustion of fossil fuel and biomass. It is emitted from various sources including diesel cars and trucks, residential stoves, forest fires, agricultural open burning and some industrial facilities. It has a warming impact on climate 460-1500 times stronger than CO2. Its lifetime varies from a few days to a few weeks. When deposited on ice and snow, black carbon causes both atmospheric warming and an increase of melting rate.