In the question below choose theoption nearest in meaningto the word or phrase underlined: Ngozi spoke to her father quitecandidly on her proposed marriage

• A. rudely
• B. faithfully
• C. frankly
• D. respectfully

The members of the Niger Basin Commission include?

• A. Guinea, Ghana and Niger Republic
• B. Burkina Faso, Guinea and Nigeria
• C. The Gambia, Benin Republic and Chad
• D. Nigeria, Benin Republic and Chad Republic

(a)(i) Mention two modes of heat transfer other than convection.

(ii) Explain land and sea breezes.

(b) An iron rod of length 30cm is heated through 50 kelvin. Calculate its increase in length. (linear expansivity of iron = 1.2 x 10\(^{-5}\)K\(^{-1}\)

(c) An electric heater immersed in some water raises the temperature of the water from 40°C to 100°C in 6 minutes. After another 25 minutes, it is noticed that half the water has boiled away. Neglecting heat losses to the surrounding, calculate the specific latent heat of vaporisation of water.

A piece of cloth was measured as 6.10m. If the actual length of the cloth is 6.35, find the percentage error, correct to 2 decimal places

• A. 3.05%
• B. 3.95%
• C. 15.00%
• D. 25.00%

The opposition of the Qurasyh to the holy prophet (SAW) was due among other things to

• A. the popularity of the prophet clan
• B. the familiarity with christianity
• C. socio-economic consideration
• D. muslims attacks on Makkan caravans

the elements that belong to the third period of the periodic table are

• A) Li, Be, Al and P
• B) Na, P, O and Cl
• C) B, C, N and O
• D) Nz, Mg, S and Ar

which of these sea routes carries the heaviest traffic?

• A. the North Atlantic routes between europe and North America
• B. the Suez Canal route between Europe and Asia
• C. the Cape route between Europe and Asia
• D. the Panama Canal route between Europe and Asia

The busiest ocean trade route is the

• A. mozambique channel
• B. suez canal route
• C. north atlantic route
• D. cape route

Which is the temperature of a given mass of a gas initially at 0°C and 9 atm, if the pressure is reduced to 3 atm at constant volume?

• A. 91K
• B. 182K
• C. 273K
• D. 819K

At optimum population level, a country has its

• A. maximum population
• B. ageing population
• C. highest birth rate
• D. highest output per head