Question

Select the correct order in terms of degree of pollution
a. Light greywater <Heavy greyweder<Blackwater
b. Light greywater>heavy greywater>blackwater
c. Light greywater< Heavy greywater > Blackwater
d. Light greywater > Heavy greywater <black water​

Answer 1

Answer:

a. Light greywater <Heavy greyweder<Blackwater

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