FISHERY OBJ
1-10: BEBABDEECE
11-20: AEABEBAECE
21-30: CEBCCAAABE
31-40: CABBCDADCC
41-50: ABEECACDEB
51-60: CCEBBDCEDD

(1a)
(i)Bad water odour could occur
(ii)It causes oxygen depletion in water
(iii)There is algae bloom/high water turbility/low transparency
(iv)It imparts off flavour of fish

(1b)
(i)aquaculture;is breeding, raising, and harvesting fish, shellfish, and aquatic plants. Basically, it’s farming in water.

(ii) fecundity; is the number of ova that are likely to be laid by a fish during the spawning season’. The number of eggs produced by a fish differs in different species, and depends on the size and age of the fish

(iii) pond; is described as an enclosure of water body specifically for growing fish or other aquatic animals under controlled conditions/environment. It has an inlet and outlet.

(iv) spawn; is The expulsion of gametes from the body into the surrounding water is called ‘spawning’ resulting in fertilization.

(1ci)
(i)maximum fish production is possible in intensive polyculture.
(ii)more profit from fish farming is possible.
(iii)creates many employment opportunities.
(iv)intensive polyculture of fish is fully controlled by a farmer.

(1cii)
-Advantage-
(i)Less use of pesticide
(ii)Less defforestation

-Disadvantage-
(i)Less production of food
(ii)Cannnot fulfill basic needs of growing population
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(3)
(i)Source of food
(ii)Means of increasing the available protein to people at a reduced cost
(iii)Provides employment and income
(iv)Provides means of recycling wastes
(v)Generates foreign exchange

(3b)
(i)They don’t make crust on the soil
(ii)They improve water movement
(iii)Improve the soil structure
(iv)Enables the growth of phytoplanktons in the pond

(3ci)
Fishing gears are equipment used by anglers when fishing. Fishing gear is also called fishing tackle.

(3cii)
(i)stones
(ii)rocks
(iii)bone
(iv)Later
(v)lead

(3ciii)
(i)Choose the right size pump for your pond
(ii)Clean debris from pond before it has a chance to decay
(iii)Create a proper balance of plants towards them for Healthy purpose
(iv) Choosing proper filtration for your pond for their health purpose.
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(FISHERY)
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