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Carbon
An element cycled between biotic and abiotic components on Earth
Essential for organisms: gives energy and growth
Decomposer
A consumer that feed on dead animals and plants e.g. fungi
Respiration
The release of energy from foods in animals
Combustion
A chemical reaction where a substance containing carbon e.g. fossil fuels rapidly react with oxygen to produce heat (global warming), light, carbon dioxide and water
Carbon Sink
Anything that takes carbon out of the atmosphere e.g. plants
Carbon Source
Anything that adds carbon into the atmosphere e.g. humans
Photosynthesis
The process through which plants use sunlight to create their own food
Diffusion
The spreading out of materials due to the movement of their particles