Question

F.State whether the statements given below are true or false.

1 sewage is a soild waste which causes water pollution and soil pollution

2 used water is a waste water

3 waste water could be reued

4 where underground sewerage system and refuse disposal system are not available the high cost on site sanitatation system can be adopted


G. Match the following

Column A

1. Inorganic impurities
2. Organic impurities
3. Nutrients
4. Bacteria

Column 'B

(a) Phosphorus and nitrogen
(b) Nitrates and phosphates
(c) Cholera and typhoid
(d) Pesticides and herbicides


match the following

Column A

1. Reduce, reuse, recycle
2. PVC
3. Secondary treatment
4 Sludge
5. Incineration

Column 'B

(a) Combustion of waste
(b) Rich in nitrogen and phosphorus
(c) Chemical process
(d) Polyvinyl chloride
(e) Three R's of waste management
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Answer 1

Answer:

Ans 1 True

Ans 2 True

Ans 3True

Ans 4 May be True