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1·The increasing use of dried animal waste as a substitute fuel has also hurt the soil because this valuable soil conditioner and source of plant nutrients is no longer being returned to the land.

人们开始越来越多地使用脱水后的动物粪便作为替代燃料，这同样会损害土壤，因为这些珍贵的土壤改良剂和植物养分的来源将无法再回归到土壤之中。

2·Animal waste also enters water supplies.

动物粪便也会进入水中。

3·It can burn wood, animal waste or crop waste.

它可以用来燃烧木材，以及动物和农作物的残渣。

4·A farmer in England used animal waste to run his car.

英国一位农民用动物粪便发动他的车。

5·Bacteria break down the animal waste to form methane gas.

细菌是动物粪便分解成沼气。

6·Farmers recycle straw, grass and animal waste to make biogas.

农民们回收麦秆、草和动物粪便来制造生物气。

7·They use biomass fuels like wood, crop waste, animal waste or coal.

他们使用木材，作物废料，动物废料或煤炭等生物燃料。

8·For example, animal waste and cattle digestive systems release methane gas.

例如，动物粪便和家畜消化系统排放甲烷。

9·Animal waste management and clean production technology in animal husbandry.

动物废弃物管理与畜牧业清洁生产技术。

10·Methane comes from animal waste, swamps, rice paddy-fields, and oil and gas rigs.

甲烷产生于动物的粪便、沼泽、水稻田以及油井和天然气钻塔。