Multiple choice

Match the following:

 
1. Septic tank a. a place where a liquid is held to increase the amount of air in it.
2. Sedimentation tank b. an underground tank, in which sewage is collected and allowed to decompose through bacterial activity before draining by means of a soakaway.
3. Aeration tank c. a place into which sewage is passed to allow suspended solid matter to separate out.

  1. 1 - b, 2 - a, 3 - c

  2. 1 - b, 2 - c, 3 - a

  3. 1 - a, 2 - c, 3 - b

  4. 1 - a, 2 - b, 3 - c

  5. 1 - c, 2 - b, 3 - a
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. A septic tank is an underground  place, in which sewage is collected and allowed to decompose through bacterial activity before draining by means of a soakaway. A sedimentation tank is a place into which sewage is passed to allow suspended solid matter to separate out. An aeration tank is a place where a liquid is held to increase the amount of air in it.

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