Increasing returns to scale suggests that

• A. a firm can make a profit by reducing output
• B. a firm can make more profit by increasing output
• C. as the producer reduces the quantity of raw materials used, the marginal product will double
• D. as the producer increases the quantity of raw materials used, the marginal product will fall

_______ checks the arithmetical accuracy of double entry accounts

• trading account
• B) profit and loss account
• C) balance sheet
• D) trial balance

Decomposition of soil organic matter is mainly caused by

• A. bacteria
• B. algae
• C. fungi
• D. nematodes

Which of the following is not a function of the Ports Authority

• A. controlling pollution in rivers
• B. providing parking space for vehicles
• C. providing storage and warehousing facilities at the docks
• D. providing facilities for water traffic movement

The best breeds of dairy cattle can be found in?

• A. South America
• B. Asia
• C. Australia
• D. Europe

According to Thessalonians, the day of the Lord will not come unless the

• A. living die first
• B. scoffers come first
• C. dead rise first
• D. rebellion comes first

Which of the following elements is a metalloid?

• A. Carbon
• B. Oxygen
• C. Silicon
• D. Sodium

The radius of a sphere is 3 cm. Find, in terms of π, its volume.

• A. \(30\pi cm^3\)
• B. \(108\pi cm^3\)
• C. \(27\pi cm^3\)
• D. \(36\pi cm^3\)

The sets A = {1, 3, 5, 7, 9, 11}, B = {2, 3, 5, 7, 11, 15} and C = {3, 6, 9, 12, 15} are subsets of \(\varepsilon\) = {1, 2, 3, ..., 15}.

(a) Draw a Venn diagram to illustrate the given information.

(b) Use your diagram to find : (i) \(C \cap A'\) ; (ii) \(A' \cap (B \cup C)\).

Nigeria's foreign policy is influenced by its position as a major exporter of

• A. military equipments
• B. natural resources
• C. agricultural products
• D. technology