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Fertilizer: Quiz

  
  
  
  

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Question 1: Sewage sludge use in ________ operations in the U.S.
Sustainable agricultureIndustrial agricultureOrganic farmingFactory farming

Question 2: ________ is another example of a contaminant often found in phosphate fertilizers (at levels from 7 to 100 pCi/g)[51].
UraniumCuriumTechnetiumPlutonium

Question 3: manure, worm castings, ________, seaweed), or naturally occurring mineral deposits (e.g.
CompostAnaerobic digestionHome compostingComposting

Question 4: What does the following picture show?

  Compost bin for small-scale production of organic fertilizer
  Decomposing animal manure, an organic fertilizer source
  A large, modern fertilizer spreader

Question 5: What does the following picture show?

  Decomposing animal manure, an organic fertilizer source
  Global methane concentrations (surface and atmospheric) for 2005; note distinct plumes
  Compost bin for small-scale production of organic fertilizer
  Decomposing animal manure, an organic fertilizer source

Question 6: Fertilizers are soil amendments applied to promote plant growth; the main nutrients present in fertilizer are ________, phosphorus, and potassium (the 'macronutrients') and other nutrients ('micronutrients') are added in smaller amounts.
HeliumHydrogenNitrogenOxygen

Question 7: What does the following picture show?

  An old fertilizer spreader
  Runoff of soil and fertilizer during a rain storm
  Compost bin for small-scale production of organic fertilizer

Question 8: the three primary macronutrients: ________, phosphorus, and potassium.
OxygenHydrogenHeliumNitrogen

Question 9: Nitrate levels above 10 mg/L (10 ppm) in groundwater can cause 'blue baby syndrome' (acquired ________), leading to hypoxia (which can lead to coma and death if not treated)[45].
AnemiaMethemoglobinemiaGlucose-6-phosphate dehydrogenase deficiencySulfhemoglobinemia

Question 10: The concentration of up to 100 mg/kg of cadmium in phosphate minerals (for example, minerals from Nauru[48] and the ________[49]) increases the contamination of soil with cadmium, for example in New Zealand.
Christmas IslandNorfolk IslandCocos (Keeling) IslandsNew Caledonia
















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