Oil palm trees do well in soils with pH level of

• A. 2.5 - 3.5
• B. 3.5 - 4.5
• C. 5.5 - 6.5
• D. 6.5 - 7.5

The major problem encountered in international trade is that of

• A. distance
• B. differences in culture
• C. politics
• D. differences in currency

(a) Define specific latent heat of vaporization.

(b) (i) What are renewable energy sources?

(ii) List four renewable energy sources.

(c) Explain why tomatoes keep longer when kept in a moist jute bag in a clay pot.

(d) A box has a volume of 0.28 m\(^3\) and is 70% filled with iron fillings at 25°C. Calculate the:

(i) total mass of the iron fillings;

(ii) energy required to melt 10% of the iron fillings. [Density of iron = 8.00 x 10\(^3\) kgm\(^{-3}\); specific latent heat of fusion of iron = 1.38 x 10\(^5\) Jkg\(^{-1}\), specific heat capacity of iron = 460 Jkg\(^{-1}\) k\(^{-1}\), melting point of iron = 1500°C] 10.

Which African country experienced a violent resistance movement against British colonial rule known as the Mau Mau rebellion?

• A. Sudan
• B. Kenya
• C. Ghana
• D. Nigeria

A persistence rise in the prices of inputs will lead to

• A. cost push inflation
• B. demand pull inflation
• C. hyperinflation
• D. stagflation

If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by

• A. decrease the length of the wire
• B. increasing the length of the wire
• C. increasing the mass per unit length of the wire
• D. changing the temperature of the wire

The Secretary of State for the colonies was responsible for

• A. democratization of local governments
• B. initiating colonial policies
• C. fighting for the interest of the people
• D. working with traditional rulers

Which of the following is NOT a factor of production?

• a) Labour
• b) Land
• c) Capital
• d) Factory

What is the term used to describe biotic and abiotic factors in the environment of the organism?

• A. habitat
• B. biome
• C. ecosystem
• D. ecological niche

The process of mobilizing, engaging and maintaining workers to work for an organization is referred to as?

• A. staffing
• B. selection
• C. recruitment
• D. employment