Glossary

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F

Floodplain

An area of flat land next to a river, formed mainly of river sediments and subject to flooding

Fluvial sediment

The process where water is the key agent for erosion

Food chain

How each living thing gets their energy

Food web

Systems of interlocking and interdependent food chains

Fossil water

An ancient body of water that has been contained in some undisturbed space, such as subglacial lakes or aquifers, and may have laid there for millennia