Question

1.
involves the simple exchange of gases.
2. The number of times a person breathes in 1 minute is called
3.
and
are examples of cold blooded animals.
4. Inhaled air has
% oxygen and
% carbon dioxide.
5. Always breathe through your
and not your
6.
helps to expel dust particles from the inhaled air.
7.
damages the lungs and causes lung cancer.
8. Diaphragm forms the
of the chest cavity.
9. The roots of a plant take up oxygen from the
particles.
[NCERT Ex
trapped between the​

Answer 1

Brainliest Please^^

Answer:

1.Respiration

2.Respiratory Rate

3. reptiles, fishes, amphibians, insects, and other invertebrates

4.The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide

5. Nose not Mouth

6. sneezing

7. Smoking

8.floor

9.Soil Particles

Answer 2

i dont know brihhhhhhhh