Answer: A. Bamboo, shells, bones, and wood
Explanation: Before its invention, bones, tortoise shells, and bamboo slips were all used as writing surfaces, but as Chinese Hemp fiber and silk were used to make paper but the quality was far from satisfactory. Books at that time were made of wood or bamboo slips so they were heavy and occupied a lot of space.
They can catch fire easily due to the materials that are used to make them
Answer:
The cotton gin
Explanation:
Cotton was the main source of income for southerners for many years. They were able to prepare so much with the cotton gin
Its D all of the above
Hope this helped :)
The Soviet Union launched Sputnik in October 1957.
