Why will a sheet of paper fall slower than one that is crumpled into a ball?

Why does a sheet of paper fall slower than one that is crumpled into a ball?

Why does a sheet of paper fall slower than one that is crumpled into a ball?

Is it faster or slower than that observed its other two activities ?

If a white sheet of paper is stained with oil, the paper turns transparent. Why ?

If a ball is thrown and gicen a spin , then the path of the ball is curved more than in a usual spin free ball.why?

Light travels slower in glass than in air because

One corner of a long rectangular sheet of paper of width 1 unit is folded over so as to reach the opposite edge of the sheet. Find the minimum length of the crease.