Explanation

(a) Six factors which have favoured the development of Iron and Steel industry in the Ruhr region

(i) Availability of coal which provides cheap source of coke for processing iron ore

(ii) Availability of Iron ore

(iii) Presence of Rhine which is one of the most navigable rivers in Europe, enables raw materials and goods to be moved between North Sea and Ruhr region

(iv) Good network of excellent roads linking Rhine valley with the rest of West Germany

(v) Abundance of soft, clear water

(vi) By-products of Iron and steel industry leads to the development of chemical industries

(b) Six factors which have favoured the development of Textile industries in Great Britain;

(i) Availability of raw materials, e.g cotton, wool, silk and linen etc.

(ii) Presence of coal which makes it possible for steam power to replace water power

(iii) Abundance of soft water which is essential to removing the grease from wool before it is spun

(iv) Abundance of skilled labour

(v) Availability of large market

(vi) Well developed centres and ports for the export of textile.

Correct Answer: C. 1.75 km

Explanation

(a)fold mountains,block mountains andvolcanic mountains.

(b)*They are storehouses of water

*Water present in the mountains is ideal for agriculture and irrigation purposes

*They have rich variety of flora and fauna

*They provide idyllic sites for tourists and enhance tourism for the specific country.

(c)*some mountain soils are infertile

*encourage landslide.

Correct Answer: B. An embankment

Correct Answer: B. imaginary lines on the earth's surface joining the north and south poles

Correct Answer: B. oasis

Explanation

A sketch map of Nigeria showing kainji dam, Lake Chad, and Ibadan

(b) Factors that impede the development of solar in energy in Nigeria:

- Inadequate technical manpower

- Capital intensive

- Lack of proper government policy

- High cost of production

- Poor maintenance culture

- Inadequate awareness

- Over-reliance on importation of components.

- Unreliability of solar radiation.

- Insufficient/high cost of spare parts.

- Competition with other Sources of power.

- Vandalization/theft.

- Conservative attitude to change.

- Fear of toxic chemicals in cells manufactured.

-Low level of technology

- Difficulty in acquiring land for a solar farm.

(c) Problems created by the construction of Kainji Dam in Nigeria:

- Loss of pasturable land

- Loss of cultivatable land

- Flooding

- Increased evaporation

- Problem of reinforcement against the collapse of the dam.

- Silting

- Displacement of people.

- Deforestation

- Spread of water-borne diseases

- Displacement of wildlife.

- Disruption of river transportation

- Uncoordinated use of the river/dam create conflicts.

- Disruption of traditional occupation. e.g Fishing at the lower part of the river.

Correct Answer: C. in economic quantities

Correct Answer: A. Metamorphic rocks

Correct Answer: B. laterite soil