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Organic matter: Quiz


Question 1: Organic matter (or organic material) is ________ that has come from a once-living organism; is capable of decay, or the product of decay; or is composed of organic compounds.

Question 2: The organic matter in ________ derives from plants and animals.
Water wellClaySoilLandslide

Question 3: One of the advantages of ________ is that it is able to withhold water and nutrients, therefore giving plants the capacity for growth.

Question 4: When the organic matter has broken down into a stable humic substances that resist further decomposition it is called ________.

Question 5: Some definitions of organic matter likewise only consider "organic matter" to refer to only the carbon content, or ________, and do not consider the origins or decomposition of the matter.
Organic compoundBiochemistryOrganic chemistryAmino acid

Question 6: Measurements of organic matter generally measure only organic compounds or ________, and so are only an approximation of the level of once-living or decomposed matter.

Question 7: Polymers and plastics, although they may be ________, are usually not considered organic material, due to their poor ability to decompose.
BiochemistryCarbonOrganic compoundOrganic chemistry

Question 8: Organic matter may be defined as material that is capable of decay, or the product of decay (________), or both.


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