Q. With reference to Brown Carbon (BrC), consider the following statements:
1.Brown carbon refers to light-absorbing organic matter present in atmospheric aerosols, often originating from sources like biomass burning and agricultural fires.
2.Unlike black carbon, which is particulate soot from incomplete combustion, brown carbon primarily consists of light-absorbing organic substances such as humic-like matter and tarry materials.
Which of the above statements is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: C
Notes:

Explanation:

  • Brown carbon is a light-absorbing organic component of aerosols, with biomass burning and agricultural fires as major sources.
  • Unlike black carbon (soot, dust), brown carbon consists of organic aerosols like humic-like substances, tarry combustion products, and bioaerosols.

Source: Environment (Factly Forum IAS)

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