Correct Answer: B. N4 100

Explanation

(a) Meaning of farm surveying: It is defined as the process of measuring and mapping out the position, topography, size and boundary of an area of farmland

(b) Disadvantages of Electrical Power

-Could be dangerous if carelessly handled

- The cost of generating electricity is high

- Maintenance cost is high

- Power fluctuations may lead to damage of farm equipment/fire hazards

- Supply of electricity could be erratic

- It cannot be widely used in field operations.

(c) Reasons why farm machines should be maintained

To prolong the life span of the machines, To avoid accidents during farm operations, To ensure good efficient functioning of the machines, To enhance salvage value of farm machines/ reduce depreciation of farm machines/to reduce rusting, To avoid frequent breakdown of farm machines

(d) Definition of land as used in agriculture Land refers to the surface of the earth and all natural resources both on the surface and underneath is OR Land is a free gift of nature which is used in production e.g. soil, pond, range land, river, sea, virgin forest.

(e) Explanation of how factors affect land availability for agriculture

(i) Population pressure:

- This increases the demand for land for construction of houses, roads and other infrastructure

- Increases demand for land for social amenities BS such as schools, hospitals, religious and recreational activities

(ii) Mining:

- Extraction of minerals such as gold, limestone etc. reduce land availability for agriculture

- Waste produced by mining industries if not properly disposed make land unsuitable for agriculture

(iii) Topography:

- Gentle slopes/flat lands are suitable for agricultural purposes since they are less prone to erosion

- Slopes or undulating lands are not suitable for agriculture as much cost will be incurred in controlling erosion

Correct Answer: A. P

Explanation

(a) The law of demand holds that all things being equal, the lower the price, the larger the quantity demanded or vice versa. On the other hand, the law of supply provides that all things being equal, the lower the price the smaller the quantity supplied of a commodity or vice versa.

(b) A change in the quantity demanded of a commodity means a movement from one point to another on a demand curve. The cause of the change in the quantity demanded is a change in the price of the product under consideration. For example, the price of maize falls from $200 to $150. The quantity demanded increases from 200 bags to 300 bags. A change can either be an increase or a decrease. This is illustrated in the diagram below:

Correct Answer: A. al Qadr

Correct Answer: C. promote economic understanding in the Third World

Explanation

(a) Map of Nigeria showing : (i) Area for cement manufacturing. (ii) Area for cocoa products. (iii)Area for flour products

See Map Above

(b) Benefits of large-scale manufacturing industries in Nigeria: (i) Provides employment. (ii) Development of social amenities.

(iii) Revenue generation (iv) Stimulation of other sectors of the economy. (v) Foreign exchange earning. (vi) Growth of allied industries.

(vii) Diversification of the economy. (viii) Provision of goods. (ix) Skill acquisition/manpower development. (x) Conservation of foreign exchange.

(xi) income to investors/workers. (xii) Development of towns. (xiii) National prestige. (xiv) Promotes trade (national/international).

(xv) Development of infrastructure. (xvi) Increase in Gross Domestic Product (GDP). (xvii) improved trade balance. (xviii) Control of inflation.

(xix) Funding of education and research.

(xx) Improved standard of I (xxi) Acquisition of technology.

(c) Advantages of large-scale manufacturing industries over small-scale manufacturing Industries: (i) Stimulates more growth of other sectors of the economy. (ii) Operation is more efficient.

(iii) Skill acquisition is higher. (iii) Ability to procure capital from financial institutions. (iv) Leads to increase trade.

(v) Unit cost of production is lower. (vi) Higher Gross National Product (ONP). (vii) Ability to engage in research. (viii) Higher productivity. (ix) Provision of welfare facilities.

(x) Stimulates more infrastructural development. (xi) More employment avenues/opportunities. (x) More revenue to government. (xi) Leads to the development of more settlements.

(x) Higher conservation of foreign exchange. (xi) More efficient advertisement. (xii) Absorbs more risks.

Correct Answer: D) Move at different speeds in the column

Correct Answer: B. latent

Correct Answer: C. the influx of west Indian and American intellectuals