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प्रश्न
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The mesosphere in the atmosphere, contains most of the air, fit for respiration
पर्याय
True
False
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उत्तर
False.
Correct statement: The troposphere in the atmosphere, contains most of the air, fit for respiration.
संबंधित प्रश्न
Define the term Global warming.
Tick (√ ) the most appropriate answer.
Magnesium burns with a dazzling white flame to form magnesium oxide, a powdery mass. The colour of magnesium oxide is :
Define the following:
Combustion.
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
You are given a test tube with two outlets and a bottle of lime water. Using same, how would you demonstrate experimentally the presence of carbon dioxide in air.
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
Write a note on nitrogen.
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
Explain the following observations very briefly
Breathing through mouth may harm you.
