Outer layer of skin is made up of keratinised epithelium because

It is exposed and subjected to wear and tear.

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It covers the whole body.

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It is thick.

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It protects from ultraviolet radiation.

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Solution

The correct option is B It is exposed and subjected to wear and tear.
The epidermis is the outer layer of skin and is made up of stratified squamous epithelium. Most of the cells are keratinocytes or made of keratin, making the epidermis a tough, protective layer. The keratin prevents water loss and protects the body from wear and tear.
Thus, the correct answer is option A.

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Reason:- Copper gets tarnished and forms a green layer when exposed to the atmosphere.

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Reason(R): It protects the skin and inner parts from ultraviolet sunrays.

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