Statement-A: Sanitary landfills were adopted as the substitute for open-burning dumps.Statement –B: In a sanitary landfill, wastes are dumped in a depression or trench after compaction, and covered with dirt everyday.

Open landfilling refers to the throwing of waste on an uncovered area the piled waste is periodically burnt or compressed at intervals to reduce its bulk. In a sanitary landfill, wastes are dumped in a depression or trench after compaction and covered with dirt every day.