7. Fill the cross word puzzle with suitable words using the hints given below:
Across
Down
4. filtration process in waste water
treatment
1. disease caused by drinking untreated water
5. water conservation method
2. treating waste water with microbes
3. this is removed in waste water treatment
Answers
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0
Answer:
Where's the crossword?!
Thanks for the points!!
Answered by
0
Answer:
it is very boring to answer my dear
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