| While teaching the topic on 'Air', an EVS teacher wanted to demonstrate that air has weight and occupies space. Her colleague suggested the following four different activities for this purpose to her. (CTET Jan 2012) |
| I. Place an empty inverter beaker on the surface of the water and start pressing it down. |
| II. Such the juice through a straw. |
| III. Blow air in a balloon. |
| IV. Tie two inflated balloons to a rod and establish equilibrium. Then, puncture one of the balloons. |
| Which of the above activities will lead to demonstrating the desired result? |
A) I and II
B) I and IV
C) II and IV
D) I and III
Correct Answer: B
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