Gujarat BoardEnglish MediumSTD 7ScienceWastewater Story1 Mark
MCQ
Which of the following can kill water purifying microbes?
✓
Paints
B
Cooking oils
C
Vegetable peels
D
Paper
✓
Answer
Correct option: A.
Paints
The chemicals present in paints, solvents, insecticides, motor oils, may kill microbes that help purify water.
Hence, it is recommended not to throw them down the drain.
The other options mentioned are biodegradable and hence won't kill the microorganism.
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