Multiple Choice Question Answer II — task. Science CBSE, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. The pressure exerted by a gas is due to

Atmospheric pressure
Gravity
Collisions with the walls of the container
Inter particle collisions

2. If a perfume bottle is opened in one corner of a room, the smell can be felt after sometime in the opposite corner. This shows that

The perfume is strong
None of these
Particles of matter are constantly moving
The room has fan which circulates the perfume

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