Solid wastes can be reduced considerably by: (a) using cloth instead of paper towels (b) ...

Solid wastes can be reduced considerably by:
 
  (a) using cloth instead of paper towels
  (b) reusing packaging when possible (c) recycling (d) all of the above

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A stream of particles released from radioactive materials is:
 
  (a) radiation (b) pollution
  (c) hazardous output (d) solid waste

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The best method of solid waste disposal at this time is:
 
  (a) dumps (b) incineration
  (c) landfills (d) radiation disposal

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The natural resource humans need most is:
 
  (a) water (b) food (c) shelter (d) air

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Concern has been increasing over the presence of __________ in human sewage.
 
  (a) lead (b) prescription medications (c) mercury (d) chlorine