T3 Chapter 4 (Section 2) "Recycling, What People Can Do, & Hazardous Wastes"
How can compost be used?
Compost can be used as a natural fertilizer for plants.
Why can paper be recycles only a few times?
Each time paper is recycled, the new paper is rougher, weaker, and darker.
True or false. A person can be exposed to hazardous wastes only be eating or drinking them.
False. A person can be exposed to hazardous wastes by breathing, eating, drinking, or touching them.
True or false. Glass is one of the most difficult products to recycle.
False. Glass is one of the easiest products to recycle.
True or false. Scientists have been able to develop completely safe and permanent methods for disposing of radioactive wastes.
False. Scientists are still searching for methods for disposing of radioactive wastes.
What products can be made from recycled plastic milk jugs and soda bottles?
Products include fiber filling for sleeping bags, fleece jackets, carpeting, park benches, shower stalls, floor tiles, trash cans, and dock pilings.
What can you do at home to reduce hazardous wastes?
You can find substitutes for some hazardous household chemicals such as insect sprays.
A substance that can be broken down and recycled by bacteria and other decomposers is said to be
biodegradable
List the methods of hazardous waste disposal
burial in landfills; incineration; breakdown by living organisms; storage in deep rock layers
Helping natural decomposition processes break down waste is called
composting
Recycling
conserves resources and saves energy
What are some common metal objects that can be recycled?
metal desks, scissors, staples, paper clips, soda cans, house siding, and window screens
List the four major categories of products that are recycled
metal, plastic, glass, and paper
What are three ways individuals can control solid waste?
reduce, reuse, and recycle
What is recycling?
the process of reclaiming raw materials and reusing them
Define corrosive
waste that dissolves many materials
Define flammable
waste that easily catches fire
Define toxic
waste that is poisonous
Define explosive
waste that reacts very quickly
How are some radioactive wastes currently stored?
They are stored in vaults dug hundred of meters underground or in a concrete and steel containers above ground.
True or false. Hazardous waste is any material that can harm human health or the environment.
True
True or false. Long-term exposure to hazardous wastes can be life threatening.
True
True or false. Recycling reduces the volume of solid waste.
True
True or false. Some radioactive waste can remain dangerous for thousands of years.
True
True or false. The best way to manage hazardous wastes is to produce less of them in the first place.
True
