A.
1. d
2. e
3. a
4. f
5. b
6. c
B.
1. T
2. F
3. F
4. T
5. F
6. T
C.
1. Plastic never decomposes.
2. About 7 million tonnes of plastic are dumped in the oceans every year.
3. We need to clean up the oceans to protect our sea creatures.
4. To help resolve this problem, we don't use so much plastic.