Answer:
It's basically something that helps hold up a structure.
Explanation:
In architecture, a corbel is a structural piece of stone, wood or metal jutting from a wall to carry a superincumbent weight, a type of bracket. A corbel is a solid piece of material in the wall, whereas a console is a piece applied to the structure. -Wikipedia
It can rapidly form in 500 years with a smaller layer, but normally formation takes 20-30 million years.
It is true that r<span>ainfall in tropical rainforests amounts to about 10 to 14 feet per year.
Rainforests, as the name itself says, are jungle-like forests where there is a lot of rain throughout the whole year. It is very warm and humid in those rainforests, due to the amount of rainfall, among other things. </span>