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GCSE Geography (Ecosystems) Quiz on Ecosystems, created by megan1403 on 02/06/2013.
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How does biomass (plants and organisms) become litter (layer of vegetation on surface of the soil).
Plants and organisms die.
Plants and organisms eat the soil.
How does litter (layer of vegetation on surface of the soil) become soil?
Nutrients taken in as plants grow.
Nutrients released as plants decompose.
What comes in and goes out to create soil?
Some nutrients are added as rock is weathered, while some nutrients are lost due to leaching.
Some nutrients are lost as rock is weathered, while some nutrients are gained due to leaching.
How does soil enter biomass (plants and organisms)?
Animals eat the soil.
Nutrients are taken up by plants.
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