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Why Do we Fall Ill — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWhy Do we Fall Ill1 Mark
MCQ
What is air$-$borne transmission?
  • A
    Particles containing no organisms are spread
  • ✓
    Particles containing organisms which can remain in air for long time
  • C
    Particles containing organisms which can remain in air for short time
  • D
    None of the above
✓

Answer

Correct option: B.
Particles containing organisms which can remain in air for long time
Particles containing organisms which can remain in air for long time Solution $:-$ Dust particles containing microorganisms which can remain in air for longer duration of time results in airborne transmission. They must be resistant to drying and can survive for long outside the body.

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