In a landfill site, trash is collected and deposited in designated areas. The waste is then compacted to conserve space, and layers of soil are added to cover the trash. Over time, natural decomposition processes break down the waste.
Natural gas or methane
An engineered landfill is designed to capture and treat any emissions that may come from the decomposition from the garbage. The emissions may be in the form of liquid runoff or vapor emissions like natural gas.
It was not invented by people, it is just a natural occurrence due to weather and plate movement.
A reservoir can be a natural or artificial lake. This is where water is collected or stored. It can be created in river valleys through the construction of a dam.
The pollution that is collected then goes to a dump or landfill and the chemicals come off the products after natural rainfall or other means, but the chemical soak into the ground and they run into other waters and the water then becomes polluted.
Clay is placed at the bottom of a landfill to create a barrier that helps prevent contaminants and leachate (polluted liquid) from seeping into the ground and potentially contaminating the soil and groundwater below the landfill. Clay is effective at creating a natural liner that can help protect the environment from pollution.
The majority of sanitary paper products are made from pulp or paper, though a significant percentage are made using the "nonwoven" process in which natural or synthetic fibers are bonded together by cohesion, friction, or adhesion.
Methane (the principal component of "natural gas"), produced by the decay of organic waste.
Above ground, Natural Gas is collected (LIQUIFIED) ans stored in LNG Tanks.
reservoir
Charles Darwin, the creator of the theory of natural selection, was born 1809.