A. cloning
The rest relate to the change or identification of genes.
Answer:
You can measure mineral hardness with The Mohs' Scale.
Hope this helped :)
It can damage collagen fibers, destroy vitamin A in skin, accelerate aging of the skin, and increase the risk of skin cancers. Excessive sun exposure can also cause cataracts and diseases aggravated by UVR-induced immunosuppression such as reactivation of some latent viruses.
