WebBiological factors affecting food security Factors such as the increase in human population, new pests and pathogens and armed conflict, can result in food scarcity. Improved farming techniques and... WebEutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. The excess algae and plant matter eventually decompose, producing large amounts of carbon …

On the re-eutrophication of Lake Erie - MSU Extension

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Uses of ammonia - Reversible reactions, ammonia and the ... - BBC Bitesize

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