Advertisements
Advertisements
प्रश्न
Nitrogen is _______ than air.
Advertisements
उत्तर
Nitrogen is lighter than air.
APPEARS IN
संबंधित प्रश्न
Name the main components of air.
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Briefly state the importance of Carbon dioxide.
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Fill in the blank
Green plants need ________________to prepare food.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
Tabulate the various components of air, including the components with variable composition.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
A ______ gas that is used to remove carbon impurities from the steel.
On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
