ACCORDING TO THE PASSAGE, THE PRIMARY SOURCE OF THE PLANT FIBER US...
48. According to the passage, the primary source of the plant fiber used in
paper is_______
a. trees
b. rags
c. fabric
d. wastepaper
48. According to the passage, the primary source of the plant fiber used in
paper is_______
a. trees
b. rags
c. fabric
d. wastepaper