Question

ime
1
Tick(the correct option:
Which of the following is a water-borne disease:
(a) malaria
(b) dysentery
(C) pneumonia
(d) breathlessness
Primary treatment is a:
(a) mechanical process
(b) chemical process
(c) biological process
none of these
3. Sewage is often processed with the help of:
(a) septic tank
(b) raised
(c) both (a) and (b)
(d) none of these
4. Sewage is:
(a) run-off
(b) domestic wastewater
(c) industrial wastewater
(d) all of these
5. Sludge in a water treatment plant is disposed of by:
(a) burring
(b) dumping into landfills
(c) dumping into water bodies
(d) decomposing to form
fertiliser and methane
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Answer 1

Answer:

1) b) dysentery

2) c) biological process

3) c) both a) & b)

4) d) all of these

5) d) decomposing to form fertilizer and methane