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.
Answer:
They were in conflict but they formed the Chinese United Front and defeated japan. After that the Nationalist and communist fought and the Nationalist were forced to live in Exile
Explanation:
13. C algae helps the ocean
14. A makes the most sense