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प्रश्न
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
विकल्प
True
False
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उत्तर
False
Correct Statement: The major component of air is nitrogen.
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संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Fill in the blank :
________ is the most abundant inert gas present in air.
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Tick (√) the most appropriate answer.
The humans pollute the air by :
Give reason:
Aquatic animals and plants are able to survive in the matter.
Fill in the blank
Green plants need ________________to prepare food.
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
Why does a lump of cotton wool shrink in water?
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
