Air is one of the main components which help in the _______________of seeds.
germination
reproduction
pollination
growth
Pick the odd one out.
Birds
Fish
Animals
Insects
Global warming is the result of the increase in _______ in air
Nitrogen
Oxygen
Water vapour
Carbon dioxide
Smoke is an example of
Liquid-in-gas mixture
Gas-in-solid mixture
Solid-in-gas mixture
Gas-in-liquid mixture
Can we see the air?
Yes
No
Both a&b
None of these
Which of the following plays an important part while drinking a liquid with a straw ?
Humidity
Temperature
Atmospheric pressure
Composition of air
____________ helps the fish to absorb oxygen.
Nose
Skin
Gills
Fin
The correct ascending order of gases as per their composition in air is
Oxygen < carbon dioxide < nitrogen
Hydrogen < oxygen < nitrogen
Nitrogen < hydrogen < oxygen
Oxygen < Carbon dioxide < hydrogen
Which of the following are the uses of air ?
Generating electricity
Disposal of seeds
Flying of birds
All