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9. Phosphorous Cycle to spec

A Level Environmental Science revision

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Last updated: May 17, 2025

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First submitted	February 1, 2025
Times taken	19
Average score	83.3%
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Hint	Answer
Importance	Bones
Importance	ATP
Importance	DNA
Why phosphorous can be a limiting factor	Low solubility
Why phosphorous can be a limiting factor	No gaseous reservoir
Main processes	Absorption
Main processes	Decomposition
Main processes	Sedimentation
Main processes	Mountain building
Main processes	Weathering
How plants absorb phosphorous (5)	Symbiotic mycorrhizal fungi hyphae networks
Decomposition: breakdown of ____________ _______	Phosphorylated proteins

Hint	Answer
Human influences	Mining
Human influences	Fertilisers
Common phosphorous mining source	Calcium phosphate
Common phosphorous fertiliser	Ammonium phosphate
Fertilisers ________ ___________ in a ______ form	Mobilise phosphorous, soluble
Fertilisers increase	Crop production
Fertilisers increase	Eutrophication
Sustainable management	Biological waste
Sustainable management	Organic fertiliser
Sustainable management	Crop breeding programmes
Sustainable management	Soil conditions
Purpose of crop breeding	Increase absorption efficiency

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