Q39 / 180 · NEET 2017 · Botany

Which one of the following statements is not valid for aerosols?

  • A
    They are harmful to human health
  • B
    They alter rainfall and monsoon patterns
  • Correct answer
    C
    They cause increased agricultural productivity
  • D
    They have negative impact on agricultural land

Solution

Aerosols through their direct or indirect effects on plants can cause various problems in agriculture. However, a continuous increase in air pollution may represent a threat to agriculture in the future that is persistent and largely irreversible. Any type of air pollution negatively impacts agriculture, by causing climatic changes (reduces rainfall) as well as affecting the health of humans. Fog, mist, and dust are natural aerosols found in the air.

Hence, the correct answer is option: 'C'.

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