Read the passage carefully, then choose the correct answers: Paper was used by ancient Egyptians as writing material more than 5000 years ago. The Chinese invented the paper 2000 years ago. A piece of paper is really made up of tiny fibers. The fibers used in paper are plant fibers, and there are millions of them in one sheet. In addition to the plant fiber, dyes and additives such as resin may be used. Dyes can make the paper different colors; resin may add weight and texture. Where do these fibers come from? The majority of paper is made from the plant fiber that comes from trees. Millions of trees are cut down, but new trees are planted in their places. Wastepaper that has been made and used can be turned into recycled paper. This recycling process saves forest, energy and reduces air and water pollution.