Why are liners laid down at the bottom of a landfill before waste is deposited in the landfill?
a.) to prevent bacteria from the soil entering and decomposing the trash
b.) to provide a system for capturing usable water from trash
c.) to prevent hazardous substances in the trash from leaking into the groundwater
d.) to provide a way to collect methane gas building up in the trash
if you could would be great. you ; ) : )