Waste and Landfills

Sanitary landfills have __________ to prevent leachate from getting into groundwater. (CLICK ALL THAT APPLY!)

• liners

• collection systems

• daily layers of soil

• garbage

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

Bacteria in landfills perform anaerobic respiration as they decompose materials very slowly. This process creates

• methane

• leachate

• CO2

• oxygen

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

Tags

NGSS.MS-LS2-3

Which soil is best to have under a landfill?

• sand

• silt

• clay

• loam

A sanitary landfill is lined with clay.

• True
• False

What is leachate?

• Water that collects contaminates as it moves downward.
• Type of organism that helps to break down compost in a landfill.
• The bottom layer of covering in a landfill.
•  None of the above is correct.

Which of these can we NOT recycle in school?

• cardboard
• plastic bags
• colored paper
• all of the above

Hazardous waste is:

• corrosive
• ignitable
• toxic
• all of these

Why is leachate dangerous?

• It has toxic fumes
• It can leak into our water supply
• It can't be processed

Tags

NGSS.MS-ESS3-3

Which category produces the greatest amount of waste?

• Industrial
• Municipal
• Hazardous
• Litter