on our planet.
The Mariana Trench is found in a remote
part of the Pacific Ocean.It stretches down to almost 11,000 metres below sea level.
It stretches down to almost 11,000 metres below sea level.
Researchers have been studying the deepest part of the ocean to find out if it has been polluted by plastic.
Where all the plastic in our oceans finally ends up is not well known.
The plastics they found were fibres a few millimetres long, probably from clothing, bottles, packaging and fishing equipment.
They also found a plastic bag, like the kind you get at a supermarket, in the deepest part of the ocean.
Scientists send submersible underwater vehicles or submarines down to take photos and videos.
Scientists study the oceans through underwater dives.
Some of the rubbish found included rubber, metal, wood, and cloth but plastic was the most common.
Things like plastic water bottles
or plastic cutlery are single use.
Even though it is very deep, things like coral, jelly fish and octopus live in the Mariana Trench.
This study shows us how serious plastic pollution is to our planet.
Some parts of the Mariana Trench have higher levels of pollution than some of the most polluted rivers in China.
A different study found that most plastic in our oceans comes from 10 very polluted rivers.
These rivers run through areas where lots of people live; people who use lots of plastic.
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