Task 1 made you think about rubbish and waste in rivers and beaches - but whilst rivers can be polluted, the seas can also become polluted.
How do you think that someting as big as a sea or ocean could become polluted?
How do these pictures make you feel?
We can find out more about pollution by looking on the CBBC Newsround pages
If you search for marine pollution, you will find several examples - I've added the links to a few for you to look at below.
Now that you've learnt a bit more about the effects of pollution, have a look at this sheet below.
Choose one story from the website to focus on and write a report on it - use the questions in the sheet above as ideas to guide your report (you don't need to print it - you can put it in your own words)