CTET 2 Math and Science 10 Jan 2022 Paper

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Question : 81 of 150

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Ms. Upasana wants to build student's understanding that air is all around us. Which of the following activities is MOST aligned with this lesson objective?

Deflating an air filled balloon using a pin.
Lighting a matchstick in a well ventilated room.
Analysing the quality of air around us in the past three months.
Drawing a flow chart explaining evaporation and condensation.

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