Advertisements
Advertisements
प्रश्न
Briefly state the importance of Oxygen.
Advertisements
उत्तर
Oxygen in the air is essential for respiration and burning.
APPEARS IN
संबंधित प्रश्न
What do you understand by the term polluted air?
Classify Carbon dioxide. Also give a balanced equation to prepare it.
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Name the following:
A process which removes carbon dioxide from the air.
______ gas is given to the patients having breathing problems.
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
______ is the main component of air.
When air is moving with cool and soothing, it is called a cyclone.
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?
