Multiple choice

What does the oil and fat thrown in the drain do?

  1. It slips down the drain quickly.

  2. It kills the harmful microbes.

  3. It cleans the drain.

  4. It gets hard and blocks the drain.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, it gets hard and blocks the drain. It reduces the filtering capacity of soil pores.

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