← Garbage Test
5 Written Questions
5 Matching Questions
- materials recovery—
- a microorganisms that are able to live only in the presence of oxygen
- b maintaining a clean condition in order to promote hygiene and prevent disease
- c ...a liquid resulting from decomposi-tion and from precipitation percolating down through a landfill.
- d ...materials removed from the waste stream for recycling or composting.
- e a very fine-grained soil that is plastic when moist but hard when fired
5 Multiple Choice Questions
- ...a substance such as oil, coal, gas, copper, and gold that, once used, cannot be replaced in this geological age. (See also natural resources.)
- ...materials that are gener-ally defined as having a lifetime of less than 3 years (for example, newspapers, magazines, books, paper and plastic dis-posable plates, and cups).
- high-density polyethylene plastic; com-monly used for milk containers and soft drink bottles; it may also be used for landfill liners.
- ...a megawatt is equal to 1 million watts; a watt is the basic unit used to measure electric power.
- water that infiltrates the soil and is stored in slowly flowing and slowly renewed underground reservoirs called aquifers.
5 True/False Questions
bottom ash → sealed vessel where water is converted to steam
hazardous waste (HW)— → ...metals that do not contain iron.
waste → materials that are unwanted or discarded
waste prevention → to puchase or production of materials and packing that can be recycled or composted
enzyme— → ...a colorless, odorless, flammable, gaseous hydrocarbon present in natural gas and formed by the decomposition of organic matter.