A positive effect of water seeping through a landfill is that it
A) stops the production of biogas.
B) promotes the decomposition of paper and other biodegradable organics.
C) helps petroleum-based plastics decompose.
D) reduces the amount of groundwater contamination.
Question 2
A home located about 500 feet from an abandoned landfill explodes in a giant ball of flames. This is a mystery, as the home only uses electricity for cooking and heating the home. Most likely, this disaster was caused by
A) groundwater contamination from the landfill into the home.
B) biogas that seeped from the landfill along horizontal cracks and into the home.
C) gasoline or other flammable substances that leached from the landfill into the home.
D) corrosives that leached from the landfill into the home and degraded the home's electrical wires.
The greenhouse effect: heat trapping by earth's atmosphere.
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