Explanation

(a) Reasons for construction of rail transportation in African countries include:

(i) To open up land, good for major crop production e.g Jos, Maiduguri

(ii) To tap resources in Agriculture, mineral, and forest, e.g rail network in Enugu, Jos, Ibadan

(iii) To link important cities and facilitate movement of people e.g Abidjan-Ouagadougou

(iv) To link different regions thus promoting inter-regional trade e.g North and South of Nigeria

(b) Problems of rail transportation include:

(i) Slow speed

(ii) Poor time schedule

(iii) High cost of spare parts and inadequate capital

(iv) Poor management

(iv) Poor standard of coaches

(c) Solutions:

(i) Need for wider gauge and faster coaches

(ii) Improved management

(iii) Construction of double tracks

(iv) Provision of loans

Correct Answer: D. 9.46

Explanation

log x = \(\bar{2}.3675\) ; log y = 0.9750

\(x = 10^{\bar{2}.3675} = 0.02331 \)

\(y = 10^{0.9750} = 9.441 \)

\(x + y = 9.4641 \approxeq 9.46\)

Correct Answer: A. justify the sinner

Correct Answer: c. 100km

Correct Answer: C) pulmonary breathing

Explanation

Cutaneous breathing is through the skin, buccal is through the mouth while larynxial is through the larynx. Pulmonary deals with the lungs.

Correct Answer: D. advertisement

Correct Answer: B. Nuh

Correct Answer: A. story and action

Explanation

(a) Waterfall:occurs at the upper course of a river, occurs as a result of erosion, a resistant hard rock is left to form an obstacle, the protruding obstacle now causes the river to rumble down from a higher to lower ground, may be formed when a river plunges down the edge of a plateau, when a fault-line scarp lies across a river.

(b) Delta:

• A feature of the lower course of a river/or at the mouth of a river.
• Formed as a result of deposition of sediments at the lower course of a river.
• Rate of deposition faster than rate of removal of silt at the coast slow rate of flow of the river.
• Here the river divides into several channels called distributaries shallow depth of water along the coast.
• The distributaries cut through the deposits before finally flowing into the sea

(c) Inselbergs:are isolated mountains formed as a result of intrusion of magma into the earth's crust and resisted erosion when all other surroundings were eroded, exposed by differential erosions by water or wind.

Correct Answer: B. he had faith in the power of Jesus' word