Observation

In part (a), majority of the candidates did not know the materials that could be used to lime a fish pond.

In part (b), majority of the candidates correctly defined the term fishing gear, but could   not define fishing craft.

In part (c), majority of the candidates correctly outlined the steps involved in the construction of a concrete fish pond.

The expected answers include

(a) (i) Calcium oxide (CaO) / quick lime
Calcium hydroxide (CaOH) / slaked lime
Agricultural lime / calcium carbonate ( CaCO3)
Shell fish shells ( Oyster shells, clam shells }
Wood ash

     (ii) Through broadcasting / distributing lime by throwing it evenly over pond surface
Sack / bag method / place bagged lime in specific locations in the pond
Distributing lime directly on pond bottom
Placing the lime on the platform at the water inflow point

     (iii)              Ensures nutrient availability / increase pond productivity
Improves pond soil condition / sealing of cracks
Controls pests, pathogens and parasites / predators
Increase water pH / reduces acidity
Reduces turbidity
Serves as buffer / balances pH fluctuations
Increase fish growth / yield
Increase the availability of CO2 for photosynthesis

(b) (i)It is a tool / equipment which is used to harvest / capture / catch fish
(ii) It is an equipment / tool used to launch fishing gear / carry fishers catch and fishing gear to and from catching sites

(c) Site selection
Clearing of site
Measuring and mapping out the land
Staking where tank is to be constructed
Stripping of top soil
Digging of foundation
Casting of concrete base with concrete mixture
Setting up outlets
Setting blocks to build up walls / cast concrete wall
Plastering of walls