Science glossary film: Biosphere

All the parts of the Earth and its atmosphere in which living organisms can exist. This is a much bigger system than the places humans can inhabit. Some birds have been known to fly as high as 11,000 metres. There's life in the cold and crushing pressure of the deep oceans, and even in hot rocks deep underground.

This is a much bigger system than the places humans can inhabit. Some birds have been known to fly as high as 11,000 metres. There's life in the cold and crushing pressure of the deep oceans, and even in hot rocks deep underground.