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Last updated at 18:42 BST, Wednesday, 24 September 2014

Underwater living

A man swimming underwater in a swimming pool

Fancy living underwater? Don't hold your breath

Fabien Cousteau and his team of oceanographers spent 31 days living and working underwater, breaking the previous record of 30 days. But why? And what was it like?

Rob and Finn discuss living underwater - and explain some related vocabulary.

This week's question:

What is the longest time a human being has held their breath underwater?

a) 12 minutes

b) 18 minutes

c) 22 minutes

Listen to the programme to find out the answer.

Listen

Underwater living

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Vocabulary

don't hold your breath

phrase meaning: "don't expect that a particular good thing will happen"

laboratory

room or building with scientific equipment for doing tests

oceanographer

someone who studies the oceans

conservation

protection of plants and animals

undersea

below the surface of the sea

final frontier

the last place for humans to explore

marine

relating to the sea

freeze-dried

(of food) quickly frozen and dried to preserve it

astronaut

a person who has been trained to travel in space

decompressing

reducing your body pressure after being underwater

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