Quiz: 11 Oceans questions to test your knowledge

They make up 71% of the world's surface - but how much do you know about the oceans on Earth?

We've put together 11 fiendishly tricky questions to put your knowledge to the test. Do you have your sea legs or are you better on dry land? Take our quiz to find out.

Five rare birds to look out for this summer
The Seven Wonders of the World quiz
The hidden worlds beneath the UK's feet