Explanation

(a) Describe the characteristics of the equatorial climate.

The temperature is constantly high all the year round. Mean monthly temperature is 27°C, and has a very small annual range of less than 3°C. It has a high humidity and its relative humidity is over 80%. Large amount of clouds in the sky and daily range of temperature is small. Annual rainfall is over 2000mm or 200cm and it rains throughout the year. There is no marked dry season hence rainfall is convectional in nature. There is an intermittent shower caused by convergence of air masses at the doldrums. Relief rainfall is usually observed at mountainous areas. Throughout the year it is hot and wet.

(b) Vegetation;

It is an equatorial rain forest and evergreen. Some trees shed their leaves and others bear flowers, others fruit simultaneously. Trees do not occur in pure stand as there exists different species. The trees are in three (3) distinct layers. The common trees are Mahogany, Ebony, African walnut, Iroko, Sapele wood, etc. In this vegetation type, there are climbers, creepers and parasites. The trees have buttressed roots and are umbrella-shape or form canopies on top which only permit this growth.

Correct Answer: B. inelastic

Correct Answer: A. the arrangements did not work out as wished

Correct Answer: D. 6cm

Correct Answer: A. rise in the cost of production

Correct Answer: A. removal of the earthly impurities

Correct Answer: D. D 154,800

Explanation

Total Expenses = Electricity bill + Rent + Drawings + Insurance Total Expenses = D40,000 + D73,400 + D28,600 + D12,800 Total Expenses = D154,800

Explanation

(a) Area of curved surface of cylinder = \(2\pi r h\)

= \(2 \times \frac{22}{7} \times 7 \times 10cm^{2} = 440 cm^{2}\)

Area of the base of cylinder = \(\pi r^{2}\)

= \(\frac{22}{7} \times 7 \times 7 = 154 cm^{2}\)

Surface area of hemisphere = \(\frac{4\pi r^{2}}{2} = 2 \pi r^{2}\)

= \(2 \times \frac{22}{7} \times 7 \times 7 = 308 cm^{2}\)

\(\therefore\) Total surface area = 440 + 154 + 308 = 902cm\(^{2}\)

(b) Volume of cylinder = \(\pi r^{2} h\)

= \(\frac{22}{7} \times 7 \times 7 \times 10 = 1540 cm^{3}\)

Volume of hemisphere = \(\frac{1}{2}(\frac{4\pi r^{3}}{3})\)

= \(\frac{4 \times 22 \times 7 \times 7 \times 7}{2 \times 7 \times 3}\)

= \(718.67 cm^{3}\)

Total volume = 1540 + 718.67 = 2258.67 cm\(^{3}\).

Correct Answer: A. Shareholders

Correct Answer: D. is ungrateful to the provider