Unit 4: Land, Soil, and Water (R)

What is not a layer of soil?

• Lava

• Litter

• Topsoil

• Subsoil

What is the structure of fertile soil?

• Litter, topsoil, subsoil, bedrock

• Stratosphere, ionosphere, atmosphere

• Roots, stem, leaf, flower

• Metamorphic, igneous, sedimentary rock.

What does soil contain that plants need to grow?

• Minerals and nutrients

• Dirt

• Litter

• Earthworms and moles

What are three problems that result from poor soil management?

• Erosion, Nutrient Depletion, Desertification

• Terracing, Windbreaks, Farming

• Agriculture, Mining, Development

Garbage produced by households and businesses

• hazardous waste
• school lunch
• municipal solid waste
• city water

Which of the following are problems associated with landfills?

• source reduction and composting
• surface improvement and leachate
• leachate and methane production
• all of the above

Turning aluminum soda cans into more aluminum soda cans is an example of 

• Primary Recycling
• Secondary Recycling
• Landfilling
• Life Cycling

A landfill liner is made of

• just clay
• clay and plastic
• just plastic
• none of these options

Which of these is NOT hazardous waste

• Motor oil
• Paint
• Cell phones
• Glass bottles

Secondary recycling

• materials are turned into new products of the same type.
• materials are converted into different products.