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Science CBSE Homework Assignments
Class 7
Waste water story
Sewage & wastewater
1.
Sewage disposal
Question:
2
m.
Choose the term that fits the blank:
The
septic tank
chemical toilet
is often installed under the ground in houses, hospitals and so on.
The
composting toilets
chemical toilets
the odour is decreased.
The
on-site sewage
off-site sewage
includes compost pit toilets.
The
septic tank
composting toilet
is often installed under the ground in houses, hospitals.
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