What type of waste is used in this method?
(c) Why are pits lined with plastic sheets in this method?
(d) What kind of useful substances can be obtained from such
methods?
(e) Which fuel is obtained from such methods?
Answers
Answer:
c Ans Large pits are dug in open spaces far away from the residential area and those pits are lined with plastic sheets as a precaution against pollution of soil due to leaching of toxic and harmful materials. ... Microbes present in soil and other top layers decompose the waste. Completely filled pit is sealed with soil slurry.
d Ans In the modern land filling sites, the waste things are separated from the environment by using the system of certain layers created to let waste for decomposing safely. It is significant to know the decomposition process produce the methane. It is collected for generating electricity.
e Ans Hydrogen is an energy carrier that can be used to store, move, and deliver energy produced from other sources. Today, hydrogen fuel can be produced through several methods. The most common methods today are natural gas reforming (a thermal process), and electrolysis.
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