Question

the lake of exposure of skin to the sunlight may cause​

Answer 1

Answer:

But too much ultraviolet, or UV, exposure can cause sunburn. The UV rays penetrate outer skin layers and hit the deeper layers of the skin, where they can damage or kill skin cells. People, especially those who don't have much melanin and who sunburn easily, should protect themselves.

Answer 2

Explanation:

lack of exposure may lead to deficiency of Vitamin D and excess exposure may lead to sunburn and tanning of skin and sometimes skin cancer due to UV rays