Why is air invisible to us?

Air traps all the light that falls on it.

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Air reflects all the light that falls on it.

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Air allows all the light that falls on it to pass through it.

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Some constituents of air absorb light rays that fall on it.

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Solution

The correct option is A.

Air allows all the light that falls on it topass through it.

We are able to see objects around us because the light reflected from the objects reach our eyes. Once light reaches our eyes, signals are sent to our brain and our brain deciphers the information in order to detect the appearance, location, and movement of the objects we are sighting at. Since air is made up of gases which allow all the light that falls on them to pass through them, we do not receive any reflected rays from the air and hence we are unable to see air.

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