Question

Exercises
A
Tick) the correct answer.
Which gas is present in air in the maximum percentage?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Argon
2.
Air pressure is maximum at
(a) Sea level
(b) In plains
(c On hills
(d) Same at all places
3. The major component of air is
(a) Nitrogen
(b) Oxygen
Carbon dioxide
(d) Argon
Which of the following statements is not correct?
(a
Air exerts pressure
(b Air occupies Space
(c Air does not have weight
(d) Air can push​

Answer 1

Answer:

1 oxygen√

2 on hills√

3 nitrogen√

4 air does not have Wieght√

i hope its help

Answer 2

Required Answer:

1. Which gas is present in air in the maximum percentage?

Answer: c. Nitrogen

Explanation: Nitrogen has 78 percent, Oxygen has 21 percentage, Carbon Dioxide has around 0.03 percentage and Argon has around 0.9 percent. in the atmosphere.

2. Air pressure is maximum at

Answer: a. Sea level

Explanation: Lower the altitude more the weight and depth while higher the altitude less the weight and depth.

3. The major component of air is

Answer: a. Nitrogen

Explanation: Because of higher percentage that is 78 percent.

4. Which of the following statements is not correct?

Answer: d. Air does not have weight

Explanation: Air exerts pressure, occupies space, can push and has weight.