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प्रश्न
The question has four options. Choose the correct answer:
Sewage sludge is used as
विकल्प
manure
biogas generators
both manure and biogas generators
tipping
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उत्तर
both manure and biogas generators
APPEARS IN
संबंधित प्रश्न
Give any two ways in which biodegradable substances would affect the environment.
What is sewage? How is sewage disposed of?
Mention whether the following statement is true (T) or False (F).
Some of the electronic wastes may contain valuable metals such as copper.
What are Composting ? Explain its Process
The steps required for conversion of kitchen garbage into manure are given below in a jumbled form.
- Put garbage in a pit
- Cover the bottom of the pit with sand
- Cover the pot loosely with a gunny bag or grass
- Add worms
Which of the following shows the correct sequence of the above steps?
Read the poem written below and then answer the questions from the information gathered from the book or elsewhere.
Name two items of waste each that need to be sent to a
- landfill,
- for composting.
Which of the following features relates to biodegradable substances?
