Correct Answer: C. deliberately

Correct Answer: B. a decrease in the number of individuals

Explanation

(a) Factors hindering agricultural development in

West Africa

(i) Basic amenities

- Inadequate storage facilities result in wastage of farm produce

- Inadequate processing facilities cause wastage of farm produce

- Inadequate provision/lack of potable water for domestic use

- Shortage of water for irrigation

- Lack/inadequate recreational facilities which promote rural

- urban migration

- Poor health care services/facilities reduce productivity of farmers

- Lack of /inadequate supply of electricity in many rural areas for farm opeartions

- Bad road network connecting the rural areas to the urban centres makes evacuation of farm produce difficult

- Lack of adequate educational facilities for farmers children

(ii) Farm inputs

- Lack of/inadequate access to modern tools and farm machinery which constrains farmers to subsistence farming/use of crude tools

- Inadequate supply/high cost of farm inputs such as seeds, fertilizers, agrochemicals to farmers which reduce farm input

- Inadequate supply of improved breeds of farm animals reduces livestock production

- Inadequate supply/high cost of feeds for feeding animals

- Poor technical know-how in the use of inputs made available to farmers

Correct Answer: B. direct sales to consumers

Correct Answer: A. uric acid

Explanation

(a) Explanation of animal nutrition: Animal nutrition refers to the art and science of feeding farm animals.

(b) Functions of oestrogen in animal reproduction:

- Stimulates the development of mammary gland.

- Influences the development of female secondary sexual characteristics.

- Determines the onset of heat.

- Promotes the production of ova/controls ovulation.

- Increases cilliary activity and mucous secretion in the oviduct.

- Increases blood supply and water content of the uterus.

(c) Explanation of methods of animal i? mprovement:

(i) Selection: This is the process of picking/choosing one or more animals with desired qualities from a group/population for breeding purposes.

(ii) Breeding: This is the mating of animals of the same species with the aim of transferring desirable qualities from parents to offspring.

(iii) Introduction: This involves bringinging exotic breeds of animals with desired qualities into a new environment.

(d) Meaning of ornamental plants: Ornamental plants are plants that are grown for the aesthetic values of their flowers, leaves, shapes etc /They are plants grown to beautify the environment.

(e) Vegetative methods that could be used to propagate ornamental plants:

- Cutting

- Budding

-Layering

- Grafting

- Marcotting

Correct Answer: C. 1 and V

Correct Answer: B. interest

Correct Answer: A. decomposers

Correct Answer: D. 3, \(\frac{-1}{3}\), 3

Explanation

log\(_5\) (\(\frac{125x^3}{\sqrt[3] {y}}\))

= \(\log_5 125 x^3 - \log _1 x^3 - log_5 y\frac{1}{3}\)

= \(3 log_5 5 + 3 log_5 x - \frac{1}{3} log _5 y\)

= 3, - \(\frac{1}{3}\), 3