1. Which pollutant is produced the most in 1997? In 2007?

2. Which pollutant has the least amount in 1997? In 2007?

3. According to the graph, which pollutant decreased drastically in 2007?

4. How many percentages of marine waste was lessened in 2007?

5. How many percentages of domestic sewage was added in 2007?

6. What do you think is the reason for litter to be reduced to 0% in 2007? Give a
reasonable answer. ​

Please help me po, thank you in advance^ω^