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प्रश्न
Briefly state the importance of Oxygen.
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उत्तर
Oxygen in the air is essential for respiration and burning.
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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
Solution of carbon dioxide in water is called _________ acid.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Sulphur dioxide gas dissolves in water to form ___________ acid.
Fill in the blank
Green plants need ________________to prepare food.
Name the following:
The product formed when phosphorus burns in oxygen.
Name the following:
The type of bacteria which directly absorb nitrogen from the air and converted soluble nitrates in the soil.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
What are the components of air?
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
A gas that neither burns nor supports burning is ______.
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
