Correct Answer: A. Branding

Correct Answer: C) memoranda, advertising and telephone

Explanation

Option A states that circulars, notice boards, and departments are used for inter-department communication. Circulars are documents that are sent to a large number of people, notice boards are physical boards where information is posted, and departments are the different areas or divisions within an organization. While circulars and notice boards can be used for communication, departments themselves are not considered a form of media for communication. Therefore, Option A is not correct.

Option B suggests that memoranda, advertising, and face-to-face communication are used for inter-department communication. Memoranda are written messages sent within an organization, advertising is a form of communication aimed at promoting a product or service, and face-to-face communication involves talking directly with someone. While these forms of communication can be used in general, they may not be specifically used for inter-department communication. Therefore, Option B is not correct.

Option C states that memoranda, advertising, and telephone are used for inter-department communication. We already know that memoranda are written messages, and advertising is a way of promoting something. The telephone is a device that allows people to talk to each other over long distances. All of these forms of communication can be used for inter-department communication, so Option C is a possible correct answer.

Option D suggests that memoranda, circulars, and telephone are used for inter-department communication. We know that memoranda and telephone can be used for inter-department communication, but circulars are documents sent to a large number of people and may not be specifically used for inter-department communication. Therefore, Option D is not correct.

Based on the options given, Option C (memoranda, advertising, and telephone) is the most correct answer as these forms of communication can be used for inter-department communication.

Correct Answer: C. Aswan and Jebel Aulia

Correct Answer: A. 6720

Correct Answer: A. maintenance of law and other

Correct Answer: A. \(\frac{153}{250}\)

Explanation

0.612 = \(\frac{0.612}{1}\) x \(\frac{1000}{1000}\)

= \(\frac{612}{1000}\)

= \(\frac{153}{250}\)

Correct Answer: C. 4

Correct Answer: A. Britain

Explanation

1. Canada.
2. United Kingdom.
3. Saudi Arabia.
4. New Zealand.
5. Israel.

Explanation

The wave particle paradox supposes that light exhibits wave properties such as reflection, diffraction, interference etc. and can also exist as a particle called photons. However light cannot behave as a wave and as particle at the same time.

Explanation

Sources of farm power are: (i) Man (ii) Animal (iii) Machines (iv) Wind (v) Water (vi) Sun (vii) Electricity

Discussion (i) Man: (i) human labour is used with traditional tools. (ii) It involved many more people than all other sources power. (iii) output is very low. (iv) easily fatigued. (v) most intelligent source of power used for precision jobs. (vi) coorrdinates other forms of farm power. (vii) human can die. (viii) human labour can be hired. (ix) human labour may ed or unskilled. (x) high incidence of pests and diseases may limit its use.

ii. Animal: (i) animals such as cattle, horses, donkeys and buffaloes are used. (ii) used to carry people, draw ploughs, transport load e.g. farm produce, fertilizers, chemicals, e.t.c. (iii) the output is lower than the machines. (iv) gets tired easily. (v) should be properly maintained and red. (vi) constitute cheap source of power. (vii) has to be directed to perform its job - not intelligent source (viii).can eat up crops. (ix) animals can die (x) animal power can be hired. (xi) high incidence of pests diseases may limit its use e.g. the incidence of tse-tse fly in the south.

iii. Machines: (i) mechanical power is derived from machines and engines. (ii) It can also be used to operate ploughs, planters, harvesters, and other farm implements (iii) used in traction, grinding, food processing and others. (iv) their use is the bedrock of mechanised agriculture by which many hectares of land are cultivated i.e they facilitate the cultivation of large hectares of land. (v) examples machines are tractors, generators, water pumps, bulldozers (vi) They are costly to maintain. (vii) they must be controlled and they need skill for use. (viii) they reduce farm drugery i.e they make farm work less tedious. (ix) they are costly to purchase. (x) they can breakdown and hold up farm work. (xi) they make operations timely. (xii) it can destroy soil structure.

iv. Wind (i) The force of the wind can be converted into electricity through windmills. converts wind power to mechanical power. (iii) it is used in winnowing i.e separation of chaff from grains. (iv) the supply is erratic and is subject to weather conditions. (v) its efficiency is highly variable. (vi) used for drying.

v. Water(i) It is derived from rivers, streams or dams. (ii) It is also used in hydro-electric power station to drive the turbine that generate electricity. (iii) water used in transportation e.g. logs, farmer's goods etc. (iv) it is used to operate steam engines. (v) The use of water can be limited by adverse weather conditions.

vi. Sun: (i) solar energy is converted in electrical energy by solar panels installed in buildings. (ii) radiation, light and heat reaching the earth's surface com from the sun. (iii) It is also used in processing farm produce e.g. drying of items such as melon, maize, cocoa, meat, fish (iv) it is used in heating of farm stead. (v) the electrical energy so converted is used for different farming activities (vi) its efficiency is highly dependent on the degree of solar radiation/ intensity. (vii) it can be erratic. (viii) it is a neat source of energy. (ix) it is a cheap source of energy.

vii Electricity: (i) can be generated from various sources, e generators hydro-electricity. (ii) it is a very clean or neat source of energy. (iii) it is very versatile. (iv) land is used in performing several farming activities, including driving other machines, drying, refridgeration, feedmilling etc (v) it is a very efficient source of farm power. (vi) it must be controlled. (vii) it is expensive. (viii) it is usual reliable. (ix) it could be dangerous if carelessly handled.