Answer: Prevent overcooking of food
Explanation:
The raw vegetables are the sources of multiple vitamins and minerals. On cooking some of the water soluble vitamins are lost. Thus the vegetables must be prevented from overcooking. As the chances of loss of maximum vitamins will be prominent.
Bullying is one of the causes
The spot where your optic nerve connects to your retina has no light-sensitive cells, so you can't see anything there. That's your blind spot.
Typically between the ages of 9 and 12 or what many consider late prepubest and early puberty