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प्रश्न
Fill in the blank
Aquatic plants and animals use _________ in water.
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उत्तर
Aquatic plants and animals use dissolved oxygen in the water.
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संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
Give a reason why water droplets appear on the outer surface of a tumbler containing ice.
Name the following:
The product formed when phosphorus burns in oxygen.
Nitrogen is _______ than air.
Give the components present in the air with a percentage?
Match the following
| 1. | Oxygen | a. | Carbon dioxide |
| 2. | Azote | b. | Nitrogen |
| 3. | Solvay process | c. | Vital life |
| 4. | Gun powder | d. | No life |
What is not true about air?
