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WorksheetsSanitary Landfills
Total questions: 10
Worksheet time: 13mins
Where would you expect to find the greatest concentration of leachate?
at the bottom of the landfill
at the top of the landfill
throughout the landfill
leachate is not created in a landfill
As rain falls on a landfill, it sinks through the Municipal Solid Waste (MSW = garbage), picking up pesticides, heavy metals and organic compounds. This liquid is called
leachate
methane
garbage soup
liners
Sanitary landfills have __________ to prevent leachate from getting into groundwater. (CLICK ALL THAT APPLY!)
liners
collection systems
daily layers of soil
garbage
Bacteria in landfills perform anaerobic respiration as they decompose materials very slowly. This process creates
methane
leachate
CO2
oxygen
In a landfill, MSW is covered with soil every day to reduce the impact of
rats, seagulls and smells
methane, leachate and litter
leachate, rats and groundwater pollution
surface water pollution and air pollution
Some landfills (including Houston's biggest!) capture ______ to create electricity.
methane
leachate
garbage
CO2
paper and organics
When a landfill closes, it can be capped with soil and used for a variety of purposes. Which of these can be built on top of a landfill? CLICK ALL THAT APPLY!!!
wind farms and solar farms
parks and wildlife habitat
golf courses
schools
homes
Why is decomposition in a landfill anaerobic?
daily compaction of garbage reduces the amount of O2 available to decomposers
leachate reacts with O2, converting it to CO2
methane reacts with O2, converting it to CO2
liners at the bottom of the landfill prevent O2 from getting to the garbage
Which soil is best to have under a landfill?
sand
silt
clay
loam
The threat to an aquifer from a landfill would be determined by considering:
soil type, bedrock type, aquifer depth
slope of land and aquifer depth
only aquifer depth
soil depth, aquifer depth, bedrock depth
