Intro to oceans - Hilary online test compilation A - Flashcards in University Marine Science

Created by: Chalkster160299
Created on: 15-05-18 17:32

What is the definition of remineralisation?

The dissolution of "hard parts" (opal, calcite) or the oxidation (breakdown) of "soft part" (organic matter) that leads to the solubilisation of nutrients

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What is decribed by "The process a plant uses to combine sunlight, water, and carbon dioxide to produce oxygen and sugar (energy)".

Primary production

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What is the main dissolved constituent that is used to breakdown organic matter during bacterial respiration?

Oxygen

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If the nitrate concentration increases from 6uM at 500m depth to 17uM at 1,000m depth, by how much, and in what way, would you predict the phosphate concentration to change over the same depth interval? Assume that the Redfield ratio is 106:16:1

Increase by 0.69

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Why does the composition of sinking particles change with depth in the water column?

Skeletal material dissolve only slowly. Soft tissue, is consumed and decomposed by animals/bacteria more rapidly. Proportion increases

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10 The dissolved constituents chloride, sodium, sulphate, magnesium, calcium and potassium account for what per cent (%) of the dissolved constituents in seawater?

Greater than 99%

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Other cards in this set

Card 2

Front

What is decribed by "The process a plant uses to combine sunlight, water, and carbon dioxide to produce oxygen and sugar (energy)".

Back

Primary production

Card 3

Front

What is the main dissolved constituent that is used to breakdown organic matter during bacterial respiration?

Back

Card 4

Front

Back

Card 5

Front

Why does the composition of sinking particles change with depth in the water column?

Back

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Intro to oceans - Hilary online test compilation A