English, asked by siba6653, 1 month ago

4. Sludge can be converted into useful substances through
a. incinerating
b. dewatering
c. composting and anaerobic digestion
d .all of these​

Answers

Answered by deeptiguptacbr945386
1

Answer:

b dewatering approx answer

Answered by sandhya14101989
0

The answer is c

Composing and anaerobic digestion

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