4-1
4-1 cont.
4-2
4-2 cont
hazardous
100
A layer of soil where plants are found
What is topsoil
100
removing nonrenewable resources from the land like coal
What is mining
100
hold solid waste safely
What is sanitary landfill
100
waste that can be roken down by bacteria and decomposers
What is biodegradeable
100
waste that catches fire easily
What is flammable
200
Farmers do this to reduce nutrient depletion
What is Crop rotation
200
plants use more nutrients than decomposers can replace
What is nutrient depletion
200
recycled alot because they can be melted and reused
What is metal and glass
200
getting rid of solid waste by burning at a high temperature
What is incineration
200
waste that can eat through other materials
What is corrosive
300
Replacing top soil and planting grass
What is land reclamation
300
caused by uses of land that exposes the soil
What is erosion
300
an example of using motor oil over again
What is recycling
300
an example is to refill plastic drink bottles
What is reusing
300
chemicals that are unstable atoms from nuclear power plants
What is radioactive
400
drought turns grasslands into desert
What is desertification
400
where hazardous waste should not be disposed
What is open dump
400
trash that is thrown away at your home or school
What is municipal waste
400
biodegradeable waste, like food scraps can be disposed of this way
What is composting
400
wastes that react fast when exposed to air and water
What is explosive
500
soil is made from this
What is bedrock
500
when a farmer leaves a field unplanted
What is fallow
500
material left over from oil refining, used to make plastics
What is resins
500
to make less waste, by buying things with less packaging
What is reduce
500
materials that are harmful to humans
What is hazardous waste
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