Question 8

Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain

a) Water vapour

b) Only oxygen gas

c) Air

d) None of these

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Solution

c) Air.

The air present in the soil particles comes out in the form of bubbles because air is lighter than water.

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Question 8 Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain a) Water vapour b) Only oxygen gas c) Air d) None of these

c) Air. The air present in the soil particles comes out in the form of bubbles because air is lighter than water.

Question 8

Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain

a) Water vapour

b) Only oxygen gas

c) Air

d) None of these

c) Air.

The air present in the soil particles comes out in the form of bubbles because air is lighter than water.