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प्रश्न
What are the effects of air pollution on human beings?
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उत्तर
Following are the effects of air pollution on human beings:
(i) Suspended particulate matter in air causes asthma, bronchitis and allergic cold.
(ii) Air pollutants cause irritation in the eyes, throat and lungs.
(iii) Hydrocarbon vapours cause cancer.
संबंधित प्रश्न
Give one use for the following inert gases :
argon
State one method by which :
- Oxygen is added to air
- Carbon dioxide is added to air
- Oxygen is removed from the air
- Carbon dioxide is removed from the air
Write down the composition of air.
How does oxygen and carbon dioxide remain nearly constant in the atmosphere?
What is climate?
Why is air called breath of life? Enumerate functions of air or atmosphere.
Why is air called a mixture? Give five facts in support of your answer.
State the utility of –
(a) Water vapour
(b) Rare or inert gases present in the air.
Analogy
78% of air: Does not support combustion:: _____: Supports combustion
______ gas is filled in tyres of vehicles.
