Chapter 19 practice

Which of the following produces the largest amount of hazardous waste?

• 
  farms

• households

• industries

• utility companies

Items that are not easily broken down in nature are

• biodegradable.

• nonbiodegradable.

• toxic wastes.

Which item should you NOT put in your compost pile?

• food scraps

• autumn leaves

• coffee grinds

• plastic

Examples of corrosive substances waste is ------------------.

• HCL

• Plastic

• Organic matter

• Lead

What are heavy metals:

• metallic elements with relatively high density, which are toxic or poisonous even at low concentrations.

• generate far more hazardous materials than farms

• Organic compounds

• food scraps and yard trimmings,

Substances that can eat through metals are ------------------.

• reactive

• corrosive

• toxic

• ignitable

Heavy metals

• A

• • are less hazardous after incineration.

• • are only harmful when radioactive.

• • pose no threat after repeated exposure.

• • bioaccumulate in animal tissues.

E-wastes, such as the discarded computer parts in the illustration, are a source of

• • radioactive materials.

• • heavy metals.

• • compostable organic compounds.

• • corrosive acids.

All of the following are methods of disposal of solid wastes EXCEPT

• • recovery

• • incineration.

• • open dumping.

• • landfills

Plant materials can be put into a compost pile instead of municipal garbage.

• True

• False