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प्रश्न
The components of air which are harmful to living beings are ______.
विकल्प
nitrogen and carbon dioxide.
dust and water vapour.
dust and smoke.
smoke and water vapour.
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उत्तर
The components of air which are harmful to living beings are dust and smoke.
Explanation:
Dust and smoke are harmful to living beings because if they enter our body, they can cause respiratory problems.
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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
Dust particles help in the ________ of water vapour in air.
Fill in the blanks
Oxygen is used in ___________the food to get _______.
What are the components of air?
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
Carbon dioxide with water changes
What is the presence of harmful substance in the air called?
Carbon dioxide gas is ______ in nature.
Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.
The solid form of CO2 is called dry ice which undergoes condensation.
Explain the following observations very briefly
An empty glass in fact is not empty.
