NEW
Font size
WorksheetsAir Around Us
Total questions: 14
Worksheet time: 7mins
The components of air which is taken by Plants to prepare the food?
(a) O2
(b) N2
(c) CO2
(d) None of these
A
B
C
D
Which of the following is NOT present in air?
(a) Oxygen
(b) Nitrogen
(c) Helium
(d) Iron
A
B
C
D
Which gas is produced by plants during photosynthesis?
(a) Nitrogen
(b) Carbon Dioxide
(c) Hydrogen
(d) Oxygen
A
B
C
D
What are the users of Oxygen?
(a) Living being
(b) Combustion of fuel
(c) Rusting of iron
(d) All the above
A
B
C
D
The presence of water vapor is Air is important for
(a) Water Cycle
(b) Ozone layer
(c) Combustion
(d) None of the above
A
B
C
D
Statement A: Nitrogen is used in protein synthesis
Statement B: Proteins are required by living organisms to grown and repair their body parts
(a) Statement A is correct only
(b) Statement B is correct only
(c) Both the statement is correct
(d) Both the statement are incorrect
A
B
C
D
Major part of the air is constituted by ?
Nitrogen
Oxygen
Carbon dioxide
Inert gases
What is the percentage of nitrogen and oxygen in air ?
98 %
99 %
97 %
100 %
When we heat water , we find bubbles coming from it . This shows that -:
Water contains air
Air contains water
Water itself converts into bubbles
Water contains dissolved minerals
What layer protects us from the sun's harmful rays?
Protection layer
Ozone layer
Atmospheric layer
Statement 1: Mountaineers carry oxygen cylinders with them while climbing high mountains.
Statement 2: The percentage of oxygen in the air decrease with increasing altitude.
Statement 1 is true and statement 2 is the correct explanation
Both statements are true
Statement 1 is true and statement 2 is false
Statement 1 is false and statement 2 is true
Statement 1: Police regulating traffic at a crowded crossing often wear a mask.
Statement 2: Mask filters carbon dioxide and sends pure oxygen inside
Both Statements are true
Both statements are false
Statement 1 is false and statement 2 is true
Statement 1 is true and statement 2 is false
Arrange the following in descending order according to their percentage:
Nitrogen, Argon, Carbon dioxide, Oxygen
Nitrogen > Argon > Oxygen > Carbon dioxide
Nitrogen > Oxygen > Argon > Carbon dioxide
Oxygen > Carbon dioxide > Nitrogen > Argon
Argon > Carbon dioxide
What is Humidity
The amount of water vapour present in air
The amount of oxygen present in air
More heat in the atmosphere
