Advertisements
Advertisements
प्रश्न
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Advertisements
उत्तर
Mountaineers carry oxygen cylinders with them while climbing high mountains.
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
State three uses of water vapour in the air.
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Name three noble gases present in the air. State their one industrial use
Fill in the blank
Green plants need ________________to prepare food.
Name the following:
The component of air which is present more in industrial areas.
______ is the percentage of nitrogen in air.
Write a note on nitrogen.
Explain carbon dioxide and its uses.
