Atmosphere

Q.

What Does The "Dust Of Snow" Represent In The Poem Dust Of Snow

1. Cool Weather

2. Particles Of Snow(

3. Healing Power Of Nature

4. None Of The Above

Q. What is the composition of gases in the atmosphere?

1. Oxygen 78%, Nitrogen 21% and Other gases 1%
2. Nitrogen 77%, Oxygen 22% and Other gases 1%
3. Nitrogen 67%, Oxygen 33% and Other gases 1%
4. Nitrogen 78%, Oxygen 21% and Other gases 1%

Q.

Name the following

By-product formed during photosynthesis.

Q. Atmosphere extends upto a height of _____km above the Earth’s surface.

1. 5, 000
2. 10, 000
3. 15, 000
4. 20, 000

Q. Earth’s atmosphere stretches from the surface of the planet up to around 1000 kilometres above it.

1. True
2. False

Q. Like carbon dioxide, plants can also take nitrogen gas directly from the atmosphere.

1. True
2. False

Q. Which are the two main gases in our atmosphere?

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

Q. Which gas is released by green plants during photosynthesis?

1. Carbon dioxide
2. Oxygen
3. Methane
4. Argon

Q.

Define atmosphere.

Q. Which of the following helps plants to obtain nitrogen from the atmosphere?

1. Virus
2. Fungus
3. Bacteria
4. Algae

Q. Atmosphere extends upto a height of _____km above the Earth’s surface.

1. 5, 000
2. 10, 000
3. 15, 000
4. 20, 000

Q.

If there were no atmosphere around the earth, the temperature of the earth will:

1. Go on increasing

2. Go on decreasing

3. Increase during the day and decrease during the night

4. Be unaffected

Q.

Name the components of air.

Q. What is atmosphere?

1. A blanket of oxygen that exists around the Earth.
2. A blanket of carbon dioxide that exists around the Earth.
3. A blanket of gases that exist in the Earth.
4. A blanket of air that exists around the Earth.

Q.

Name the main gases present in air.

Q. Match the following names of the gases with their respective share of presence in the atmosphere.

1. 78%
2. 21%
3. 0.93%
4. 0.033%

Q. Match the following names of the gases with their respective share of presence in the atmosphere.

1. 78%
2. 21%
3. 0.93%
4. 0.033%

Q.

Circle the odd one out. Give a reason for your choice.

1. Hydrogen

2. Nitrogen

3. Oxygen

4. Carbon dioxide

Q.

2 (iii) Name the has used by plants for photosynthesis.

Q. Which of the following helps plants to obtain nitrogen from the atmosphere?

1. Virus
2. Fungus
3. Bacteria
4. Algae