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Question
Explain the differences between pure air and polluted air.
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Solution
Category
Pure air
`Polluted air
Nature
It is not harmful for Human beings and animals
It is harmful for human beings and animals
Definition
Air which is fit for breathing is called pure air
Air which is not fit for breathing is called polluted air.
Composition
Pure air contains around 78% nitrogen, 21% oxygen and 0.03% carbon dioxide.
Polluted air has no such definite composition of these gases.
Presence of smog
Smog is absent
Smog is present
Presence of dust
It is free of dust and suspended particles
It has dust and suspended particles
|
Category |
Pure air |
`Polluted air |
| Nature | It is not harmful for Human beings and animals | It is harmful for human beings and animals |
| Definition | Air which is fit for breathing is called pure air | Air which is not fit for breathing is called polluted air. |
| Composition | Pure air contains around 78% nitrogen, 21% oxygen and 0.03% carbon dioxide. | Polluted air has no such definite composition of these gases. |
|
Presence of smog |
Smog is absent |
Smog is present |
|
Presence of dust |
It is free of dust and suspended particles |
It has dust and suspended particles |
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