Which of the following statement(s) is/ are correct? - Vidyadip

MCQ

Which of the following statement(s) is/ are correct?

A
We cannot observe the presence of dust particles in air.
✓
Amount of dust particles in air vary from time to time.
C
Both the above are correct.
D
All of the above.

✓

Answer

Correct option: B.

Amount of dust particles in air vary from time to time.

Amount of dust particles in air vary from time to time.

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