A) is not available in sufficient quantities to replenish agricultural land. B) is potentially more dangerous than nuclear power. C) is a large source of pollution. D) helps counteract the greenhouse effect. A) is not available in sufficient quantities to replenish agricultural land. B) is a large source of pollution. C) helps counteract the greenhouse effect. Webstudy with quizlet and memorize flashcards containing terms like what are the components of animal manure? (2), how can animal waste be damaging to the environment? Webthe source of pollution that decreases the oxygen level of water are plant fertilizer and animal manure. Plant fertilizer that is applied in the agricultural field when. Webmanure is a valuable source of nutrients for crops and can improve soil productivity. Manure properties depend on several factors: Diet, digestibility, protein and fiber. Webstudy with quizlet and memorize flashcards containing terms like what are the components of animal manure? (2), why was guano a good fertiliser?, how can animal waste be.