Air around Us Test

Result

Air around Us Test - 7

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following is not a constituent of the atmosphere?

A
Oxygen

B
Nitrogen

C
Carbon dioxide

D
Manganese dioxide

Solution

Manganese dioxide is not a constituent of the atmosphere. Rest all other gases mentioned in the options form an important part of the atmosphere.
Question 2
1 / -0

Main constituent in air is:

A
nitrogen

B
oxygen

C
argon

D
water vapor

Solution

Air is a mixture of gases. The volume per cent of nitrogen and oxygen is 78%and 21% respectively. Air also contains tiny amounts of carbon dioxide, argon, methane, ozone and water vapour.
Hence, the main constituent in the air is nitrogen.
Question 3
1 / -0

The amount of water vapour in air is termed as:

A
humidity

B
mist

C
dew

D
None of the above

Solution

Humidity is the amount of water vapour present in the atmosphere.
Mist is a cloud of tiny droplets of water suspended in the air.
Dew is water in the form of droplets that appear on objects in the morning due to condensation.
Hence, option $$A$$ is correct.
Question 4
1 / -0

Carbon dioxide, argon, methane, ozone and water vapour are also present in air in:

A
very small quantities

B
very large quantities

C
equal quantities

D
None of these

Solution

Carbon dioxide, argon, methane, ozone and water vapour are also present in air as very small quantities. Nitrogen is a major component.
Question 5
1 / -0

Which gas has the highest partial pressure in atmosphere?

A
$$CO_2$$

B
$$H_2O$$

C
$$O_2$$

D
$$N_2$$

Solution

Air contains $$78\ \%$$ Nitrogen. So, it contributes more number of moles to partial pressure than any other gas in the atmosphere. So, it has the highest partial pressure.
Hence, Option $$D$$ is correct.
Question 6
1 / -0

In desert areas, water vapor content is:

A
different

B
higher

C
low

D
constant

Solution

In desert areas, water vapor content is low because deserts are hot areas as there is a lack of water, and if there is a lack of water then there is a lack of water vapor.
Question 7
1 / -0

Why was there no oxygen in the early atmosphere?

A
No water

B
No animals

C
No vegetation

D
No fire

Solution

Oxygen is produced by plants by the process of photosynthesis, earlier there were no plants and vegetation, which's why no oxygen in the early atmosphere.
Question 8
1 / -0

A greenhouse gas that absorbs energy and maintains earth's temperature is :

A
carbon dioxide

B
nitrogen

C
ozone

D
oxygen

Solution

A greenhouse gas that absorbs energy and maintains the earth's temperature is carbon dioxide.
Option $$A$$ is correct.
Question 9
1 / -0

Evaporation of water in shade is:

A
No evaporation takes place in shade

B
faster

C
slower

D
None of these

Solution

Evaporation of water in shade is slower, as the sun's heat increases the energy of water molecules, and they start moving faster, eventually leading to evaporation when the energy is enough to convert into a vapour.
Question 10
1 / -0

Plants also consumes ________ for respiration.

A
Carbon monoxide

B
Oxygen

C
Nitrogen

D
Both A and B

Solution

Plants also consume $$\text {oxygen}$$ for respiration.
At night, when photosynthesis can’t take place, plants continue to consume oxygen but they don’t release any back into the atmosphere.
As the amount of oxygen consumes by the plants is very low during respiration so it doesn't affect the oxygen levels of the atmosphere.

Hence the correct option is $$B$$.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Air around Us Test - 7

Result

Air around Us Test - 7

Score

-

Rank

-

SHARING IS CARING

Question 1

Oxygen

Nitrogen

Carbon dioxide

Manganese dioxide

Solution

Question 2

nitrogen

oxygen

argon

water vapor

Solution

Question 3

humidity

mist

dew

None of the above

Solution

Question 4

very small quantities

very large quantities

equal quantities

None of these

Solution

Question 5

$$CO_2$$

$$H_2O$$

$$O_2$$

$$N_2$$

Solution

Question 6

different

higher

low

constant

Solution

Question 7

No water

No animals

No vegetation

No fire

Solution

Question 8

carbon dioxide

nitrogen

ozone

oxygen

Solution

Question 9

No evaporation takes place in shade

faster

slower

None of these

Solution

Question 10

Carbon monoxide

Oxygen

Nitrogen

Both A and B

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.