(a) ldentify specimens L, M and N.
Specimen L; Specimen M; Specimen N;
(b) ldentify specimens O and P, using specimen N
(c) In which of specimens O and P will specimen M survive better?
(d) What is the relevance of specimen L in the production of specimen M?
(e) State two pond management practices to improve specimen O for the production of specimen M.
(f) List three ways by which the loss of specimen M can be controlled in a farm.
(g) State one method each of (i) partial harvesting. (ii) complete harvesting of specimen M.
Explanation
(a)
- Specimen L is NPK Fertilizer
- Specimen M is Tilapia Fish
- Specimen N is Litmus Paper
(b) Litmus paper test shows that specimen O is acidic while P is neutral
- Acidic liquid (Fluid)
- Neutral liquid (Distilled water)
(c) Specimen M will survive better in P
(d) Specimen L is used to fertilize a fish pond in small quantities to provide nutrients for the growth of phytoplanktons which are eaten by fish
(e) Pond management practises to improve specimen O for the production of specimen M includes:
- desilting.
- liming
- fertilizer application
(f) Ways by which the loss of specimen M can be controlled in a farm are;
- Control gate to prevent excess out of flow of water from dam
- Errection of spill-way.
- Maintaining patrol to prevent stealing.
- Control of predators.,
- Control of diseases.
- Avoid over flooding by erecting barriers across flood part
(g)(i) Partial harvesting of specimen O can be achieved through the use of ;
- Hook and line
- Traps,
- Baskets,
- Net and spears
(ii) Method of complete harvesting of specimen O is by drainage of the pond,