Advertisements
Advertisements
प्रश्न
Nitrogen is _______ than air.
Advertisements
उत्तर
Nitrogen is lighter than air.
APPEARS IN
संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
Briefly state the importance of Carbon dioxide.
Give reason:
Aquatic animals and plants are able to survive in the matter.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
______ present in the air is needed for respiration.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
______ gas is essential for the proper growth of all plants.
The components of air which are harmful to living beings are ______.
Observe the picture given in Fig. carefully and answer the following questions.

Can you comment on the air quality of the place shown in Fig?
Explain the following observations very briefly
Breathing through mouth may harm you.
