Question

A. Fill in the blanks.
and
1.
pumps blood to all parts of the body.
2. When we breathe in air, it moves down through the
reaches the two
3. Deep breathing involves deep
and holding the breath for
a few seconds before
4.
are the substances that make our environment dirty.
5. We should use
bags to reduce air pollution.​

Answer 1

Answer:

Explanation:

1. heart

2.windpipe or the trachea

3.exhaling the air

4.pollutants or impurities

5.cloth

Answer 2

Answer:

1. Heart pumps blood to all parts of the body.

2. When we breathe in air, it moves down through the trachea reaches the two lungs.

3.  Deep breathing involves deep and holding the breath for a few seconds before exhalation.

4. Pollutants are the substances that make the environment dirty.

5. We should use cloth or paper bags to reduce air pollution.