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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.
उत्तर
Mountaineers carry oxygen cylinders with them while climbing high mountains.
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संबंधित प्रश्न
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
Name the following:
The main, rare (inert) gas present in air.
What is the percentage of nitrogen in air?
Write the percentage of the gases present in air.
______ gas is given to the patients having breathing problems.
Whales come up to the water surface to breathe in oxygen.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
How will you show that air is dissolved in water?
______ is responsible for making clouds.
Tri oxygen molecule is known as ______.
