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UPPSC PCS 2017 · Question 147 of 149

The size of the Respirable Suspended Particulate Matter (R.S.P .M) in air is:

Current Affairs

  1. Amore than 7 mm (microne)
  2. Bmore than 6 mm (microne)
  3. Cmore than 5 mm (microne)
  4. Dless than 5 mm (microne)Correct

Answer: D. less than 5 mm (microne)

Explanation

Small particles less than 5 microns in size cannot be stopped by the nasal membrane and they easily reach the lungs. These size of particles are known as the Respirable Particulate Matter.

Source: edurev.in UPPSC Prelims 2017 GS Paper I with Answer Key and Solutions

← Q146View full paper (149 questions)Q148 →

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