<span>Actually the correct method to handle the used needle is ie, It should be disposed in the right place after wrapping up it with a piece of paper or cover, which will surely avoid any type future unwanted problems to the new patients or any body and also it stops us from the spreading of unwanted diseases.</span>
Answer:a. A cataract is a clouding of the lens. Some cataracts are congenital, but most are due to age-related hardening and thickening of the lens, diabetes mellitus, or exposure to UV rays over time. The lens can be removed and replaced
with an artificial lens.
Explanation:
