NCERT Air Around Us Objective Questions
NCERT Air Around Us Objective Questions
Class: 6 | Subject: Science
Section 13: Air & Environment
Topic: Air Around Us
Strictly Based on NCERT | CBSE Board Examination Pattern
Section 13: Air & Environment
Topic: Air Around Us
Strictly Based on NCERT | CBSE Board Examination Pattern
1. Air is present:
Answer: C. Everywhere
Air occupies all spaces around us, even in closed containers.
Air occupies all spaces around us, even in closed containers.
2. Air is a mixture of:
Answer: C
Air contains nitrogen, oxygen, carbon dioxide, water vapour and inert gases.
Air contains nitrogen, oxygen, carbon dioxide, water vapour and inert gases.
3. Oxygen supports:
Answer: B
Living beings need oxygen for breathing.
Living beings need oxygen for breathing.
4. Nitrogen percentage in air is about:
Answer: C
Nitrogen is the major component of air.
Nitrogen is the major component of air.
5. Plants use CO₂ for:
Answer: B
CO₂ is used to prepare food.
CO₂ is used to prepare food.
6. Air occupies:
Answer: B
Air fills any available space.
Air fills any available space.
7. Air exerts:
Answer: B
Air pressure acts in all directions.
Air pressure acts in all directions.
8. Moving air is called:
Answer: B
Wind is air in motion.
Wind is air in motion.
9. Air contains water as:
Answer: B
Moisture in air.
Moisture in air.
10. Atmosphere is:
Answer: B
Layer of gases around Earth.
Layer of gases around Earth.
11. Burning needs:
Answer: B
Supports combustion.
Supports combustion.
12. Aquatic animals use:
Answer: B
Oxygen dissolved in water.
Oxygen dissolved in water.
13. Plants release:
Answer: B
During photosynthesis.
During photosynthesis.
14. Air pollution affects:
Answer: D
Harms environment.
Harms environment.
15. Air is needed for:
Answer: D
Essential for many processes.
Essential for many processes.
16. Air expands on:
Answer: B
Hot air rises.
Hot air rises.
17. Air contracts on:
Answer: B
Cold air sinks.
Cold air sinks.
18. Air helps in sound:
Answer: B
Sound travels through air.
Sound travels through air.
19. Transparent air means:
Answer: B
Air cannot be seen.
Air cannot be seen.
20. Absence of air stops:
Answer: D
Air is essential for many life processes.
Air is essential for many life processes.
