1 How long is the Great Barrier Reef?A 2, 300 kilometresB 230 kilometresWhat can you see there?A fish and coralB things from spaceThe Great Barrier Reef inAustralia is one of the world'snatural wonders. It is 2, 300kilometres long, and you can see it 2from space! The reef is home tomany kinds of fish and coral. Onethird of the world's soft coral isthere! But the coral reef is gettingsmaller and smaller. This is becausepeople kill too many fish and theythrow rubbish into the clear bluewaters of the reef. Let's hope wecan look after this amazing wonderso people can still see it hundreds3Why is it a natural wonder?A It's in Australia.B It's got one third of the worldcoral4Why is it getting smaller and smalleA There are a lot of fish there.B People throw rubbish there.of years from now!​