Correct Answer: A. maize

Correct Answer: A. potassium

Correct Answer: D. 80%

Explanation

(a)Reasons why fish farming is important

- Source of food for humans

- Provides fish meal for farm animals

- Provides employment

- Provides income

- Makes better use of land and water in the environment

- For medicinal purpose e.g, cod liver oil

- Source of foreign exchange

- For research activities

- For educational purposes

- For pleasure and recreation - Source of raw materials for industries e.g scales, bones

(b)Factors that influence choice of site for a fish pond

- Water supply/availability of water

- Availability of fast growing fingerlings

- Vegetation of the area

- Topography

- Soil type

- Size of pond to be constructed

- Availability of feeds/feed supplement

- Availability of labour

- Water quality

- Climate of the area

- Accessibility

(c)Sources of feed nutrients

(i) Sources of water

-Fresh fodder

- Metabolic water from oxidation of fats

- Direct intake of water

- Fruits

(ii) Sources of protein

-Groundnut cake Palm kernel cake

- Cotton seed cake

- Linseed cake Sunflower seed cake

-Milk

-Maggot

- Blood meal

- Copra seed cake/meal

-Fish meal

-Forage legumes

- Feather meal

- Meat meal

-Soya bean cake/meal

(iii) Sources of carbohydrates

-Spent grain

-Molasses

- Forage grasses

-Hay/straw

-Silage

- Wheat bran

-Rice bran

- Tubers e.g cassava, yam

-Fruits e.g plantain

-Cereals (whole grains) e.g. maize

(iv) Sources of vitamins

-Fish/cod liver oil

- Green leaves/leafy vegetables

-Fruit vegetables e.g. pepper, onion, okro

-Yellow maize

- Palm oil Carrots/root vegetables

- Bone meal

-Vitamin premix

-Milk

-Cereal grains

- Fish meal

(d)Ways by which round worm infestation is of economic importance in livestock production

- Feeds on digested food in the host

-Retards growth

- Sucks blood thus causing anaemia

- Causes respiratory problem

- Leads to indigestion of food

-Causes constipation

-Loss of weight(emaciation)

-Leads to loss of appetite or anorexia

-Causes general body weakness

-Damages organs in the body

-Cause death of host

-Cause internal haemorrhage

Correct Answer: D) Magnum

Correct Answer: A. elephant grass

Correct Answer: A. Mapping land boundaries

Explanation

The primary purpose of farm surveying in agriculture is to accurately map the land boundaries of a farm. Farm surveying involves the measurement and mapping of land to establish property lines, determine field sizes and shapes, and demarcate boundaries between different land parcels.

Correct Answer: B. The transfer of pollen from the anther to the stigma of a flower

Explanation

Pollination is the process by which pollen grains from the male reproductive organ of a flower (anther) are transferred to the female reproductive organ (stigma) of the same or a different flower.

Correct Answer: B. ascertain water content of the soil

Explanation

(a) Irrigation is defined as the artificial application of water to the soil for farming purposes.

(b) Six sources of water for irrigation are: (i) Rivers (ii) Lakes (iii) Streams (iv) Dams (v) Bore holes (vi) Ponds

(c) Benefits of irrigation facilities in Nigeria are:(i) It ensures early planting of crops. (ii) It ensures greater productivity of crops. (iii) It corrects soil salinity. (iv) It enables farmers to grow crops throughout the year.

(d) Two similarities between surface and sprinkler irrigation are: (i) Both are artificial methods of applying water to crops. (ii) Both require water pump to lift water from source.

Three differences between surface and sprinkler irrigation are:

Surface irrigation Sprinkler irrigation

(i) It is cheap It is expensive

(ii) It requires gentle slope It is suitable for lands with all kinds of slopes

(iii) It is easy to operate It requires skill