Page 25 - EVS Class 05

D. Choose the correct option for the following.

1. We breathe out through:

a) mouth b) nose
c) ears d) lungs

2. We breathe in:

a) oxygen b) carbon dioxide

c) nitrogen d) none of these
3. The _____________ in the nose trap the dust in the air.

a) bone b) hair

c) hands d) skin

4. Our nose has some ___________ and ___________ hair.
a) tiny b) fine

c) both a) & b) d) none of these

5. While breathing in, air goes into the:

a) lungs b) chest
c) both a) & b) d) none of these

When we breathe in, our chest expands. When we breathe out, our chest
becomes normal. Ask your friend to measure your chest with a measuring tape
when you breathe in and just after you breathe out. Write your observations here.

Measurement of the chest while breathing in = _____________ cm

Measurement of the chest while breathing out = _____________ cm

EVS-5
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