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प्रश्न
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
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उत्तर
Almost all the living organisms present on earth inhale oxygen or use oxygen in the food making processes (plants use oxygen for photosynthesis). Hence, it is obvious that oxygen is an essential element for survival and there will be no life in the absence of oxygen.
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
What do you understand by the term polluted air?
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
Give word equation for the following conversion:
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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.
The Scottish chemist ______ discovered carbon dioxide is present in air.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
The second major component of air is oxygen.
Metals like magnesium, iron, and sodium burn in oxygen and give basic ______.
