Class 6 Air Around Us CBSE Questions & Answers

Class 6 · Air Around Us

This is Science Class 6 Air around Us CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The process in which oxygen is breathed in is called
  • A
    Exhalation
  • B
    Transpiration
  • C
    Inhalation
    Correct
  • D
    Transfusion
2
Strong winds brings
  • A
    Hail
  • B
    Rain
  • C
    Storm
    Correct
  • D
    Tornado
3
One-fifth of the total volume of air is
  • A
    Carbon monoxide
  • B
    Oxygen
    Correct
  • C
    Carbon dioxide
  • D
    Nitrogen
4
During respiration
  • A
    Oxygen is taken in and released out
  • B
    Carbon dioxide is taken in and released out
  • C
    Carbon dioxide is taken inside and oxygen is released out
  • D
    Oxygen is taken inside and carbon dioxide in released out
    Correct
5
The nose and mouth of traffic police at crossing is covered with
  • A
    Nets
  • B
    Mask
    Correct
  • C
    Handkerchief
  • D
    Towel
6
The device that converts wind energy to electrical energy is
  • A
    Solar panel
  • B
    Hydro power
  • C
    Thermal power
  • D
    Wind mills
    Correct
7
In which of the following process carbon dioxide is not released?
  • A
    Photosynthesis
    Correct
  • B
    Fermentation
  • C
    Respiration
  • D
    Combustion
8
Living organisms living on land have ___________ for respiration.
  • A
    Trachea
  • B
    Gills
  • C
    Lungs
    Correct
  • D
    Heart
9
Food is prepared by plants by the process of
  • A
    Pollination
  • B
    Respiration
  • C
    Transpiration
  • D
    Photosynthesis
    Correct
10
Which of the following can be compressed easily?
  • A
    Water
  • B
    Solid
  • C
    Metal
  • D
    Air
    Correct
11
Wind does not help in movement of
  • A
    Ceiling fan
    Correct
  • B
    Firki
  • C
    Weather cork
  • D
    Sailing yacht
12
Select the correct statement.
  • A
    Moving air is called wind
    Correct
  • B
    Air is a compound
  • C
    Air can not be compressed
  • D
    Air can not move
13
Mountaineers carry oxygen cylinder because there is
  • A
    Impure air in higher altitude
  • B
    Low pressure of carbon dioxide
  • C
    Less air on higher altitude
    Correct
  • D
    High pressure of oxygen at higher altitude
14
In which of the following air is not used?
  • A
    Winnowing
  • B
    Boiling water
    Correct
  • C
    Inflating tyres
  • D
    Filling balloon
15
When dry soil is added to water bubbles emerge due to
  • A
    Presence of microorganisms
  • B
    Presence of air in it
    Correct
  • C
    All of these
  • D
    Pebbles in it