One ream of copier paper contains .......sheets of paper

(b) With the help of a lens look at the pieces of paper you collected for the above questions.Do you see any difference in the material of recycled paper and a new sheet of paper?

In an experiment, a safety pin is placed on a sheet of paper and the sheet is held over a burning candle until it is yellow and charred. On removing the pin, its white trace is seen on the paper. Explain the observation with reasoning.

After a single sheet of paper is folded in half, there are two layers of paper. The same sheet of paper is repeatly folded in half. If function f represents the number of layers of paper that result when the original sheet of paper is folded a total of x times, then which equation could represents this function?

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.

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.

One corner of a long rectangular sheet of paper of whdth 1 units is folder over so as to reach the opposite edge of the sheet . The minimum length of the crease is