Question

State whether the statements given below are True or False:

1. We cannot see air.


2. Air is a compound and not an element.


3. A firki rotates only in an open area or in a closed room with the ceiling fan switched on.


4. Open areas allow air to move here and there.


5. Air is an opaque material.


6. All living organisms require air for their survival.


7. Air contains water vapours.


8. We breath in CO2 and breath out O2.


9. A policeman, controlling the traffic wears a mask to prevent the dust particles from entering his respiratory system through breathing.


10. Air is necessary for burning things.


11. The major part of air is nitrogen.


12. Air becomes thinner and thinner as we go higher and higher from the surface of earth.


13. Plants produce oxygen through photosynthesis.


14. Plants do not respire.​

Answer 1

Answer:

1-) True

2-) True

3-) False

4-) True

5-) False

6-) True

7-) True

8-) True

9-) True

10-) True

11-) True

12-) True

13-) True

14-) False