Question

we know that Ozone Layer protect the Earth from harmful ultraviolet rays of the sun. why do we need to use sunscreen while out in the sun ​

Answer 1

Answer:

While out in the sun we are exposed to this harmful ultraviolet rays of the sun. This exposure can cause a number of harm to our body  like premature ageing , skin tanning and even skin cancer. Therefore it is important to use sunscreen while out in the sun. Sunscreens are very effective when used properly. So, Anyone who spends time outdoors should use a sunscreen to avoid it.

Answer 2

Answer:

The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects.... The level of UVR from the sun measured at the Earth's surface varies linearly with latitude.

Explanation:

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