Question

Q2 True/False
1. Air is a matter and occupies space.
2. A lift pump works on the principle that air exerts pressure
3. The composition of nitrogen is 21% in the air. 4. Stratosphere is the upper most layer of the atmosphere.
5. Plants give out oxygen during photosynthesis.
Please don't give unusual answers... either I will report you ! ​

Answer 1

Answer:

1) true 3) true. 5) true

2) false 4) false