Observation

This question was fairly attempted by the candidates.  In 1(a-b), majority of the candidates could state the uses of specimens A(Secchi disc) and B(Aquarium aerator) but most of them could not draw and label specimen A(Secchi disc) correctly.
Also, in 1(c-d), majority of the candidates were able to describe how specimen B(Aquarium aerator) is used but they could not state the other ways of achieving the purpose for which specimen B(Aquarium aerator) is used in a fish pond.

The expected answers include:

1 (b)    Drawing and labelling of specimen A (Secchi disc)

(d)       Other ways of achieving aeration of pond water

-           Paddling
-           Beating of water
-           Walking/wading through the water
-           Reduce water level and refill with water from shower