Air and It's Composition

Q.

…………..is the most abundant gas in the atmosphere.

Q.

Air over land is _________ the air over water bodies.

1. hotter than

2. cooler than

3. heavier than

4. same as

Q. What is the correct order of air composition?

1. Nitrogen>Oxygen>Carbon dioxide>Argon
2. Nitrogen>Carbon dioxide>Argon>Oxygen
3. Nitrogen>Oxygen>Argon>Carbon dioxide
4. Nitrogen>Argon>Oxygen>Carbon dioxide

Q.

2.Name the main components of air.

Q.

What would be the direction of the wind during the day?

1. From the sea to the land

2. From the land to the sea

3. Does not flow from the sea to the land

4. Cannot be ascertained

Q.

The third most abundant gas in the atmosphere is carbon dioxide.

1. True

2. False

Q. Warmer places of the earth are at the ___.

1. equator
2. south pole
3. longitudes
4. north pole

Q.

Percentage of nitrogen and oxygen in the air is ____ respectively.

1. 70% and 30% approx

2. 80% and 20% approx

3. 78% and 21% approx

4. 60% and 40% approx