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417 words used in the labs.

Find a term from the labs, understand the process behind it, and see how it appears in the landscape. Each entry connects an explanation with a real observation and a model you can explore.

Respiration

Processes that release energy from organic matter. Aerobic respiration consumes oxygen and releases carbon dioxide and water.

What to look for

White beech leaf litter at Carowiry Creek, New South Wales. Organic material on the forest floor stores carbon and provides material for decomposition.

Fallen leaves and organic litter beneath white beech trees in New South Wales, Australia.
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Explore further with USGS water glossary · USGS volcano glossary · NPS glacial geology · NASA Earth facts. Photograph acknowledgements are collected on the Image credits page.