Past Questions And Answers
Choose from the options nearest in meaning to the word underlined.
The conference Centre caters fortransients only?
- A. temporary guest
- B. professional
- C. permanent guests
- D. novices
How many isomers of the compound below can be obtained?
- A) 5
- B) 4
- C) 3
- D) 2
Which of the following constitutes an advantage in the use of hard water?
- A. Formation of scum with soap
- B. Furring of kettles
- C. Blockage of water pipes
- D. Formation of strong bones
(a) Describe five ways by which commercial banks aid international trade
(b) State and explain five functions of the Nigerian Export Promotion Council
View Discussion (0)WAEC 1997 THEORYWhen Jonah fled from God when he was sent to Nineveh, he joined a ship from Joppa to
- A. Nineveh
- B. Cush
- C. Cana
- D. Tarshish
Which of the following factors would not affect the solubility of a gas?
- A. Concentration
- B. Nature of solvent
- C. Pressure
- D. Temperature
In an examination, Kofi scored x% in Physics, 50% in Chemistry and 70% in Biology. If his mean score for the three subjects was 55%, find x
- A. 40
- B. 45
- C. 55
- D. 60
Use the information to answer question below
......................... Departments
........................... P Q R
Sales value............... N23,400
Selling expenses.......... 1,100 N1,400 N1,280
Administrative expenses...N1,400 N1,000 N1,020
Cost of sales............. N6,900.... N6,700 N5,500
Sales value of department Q doubles that of p, which is 1/3 of R. Depreciation which amounts to N1,800 is to be apportioned among the three departments in the ratio 3:5:7 respectively.
Determine the total expenses of department P?
- A. 9,760
- B. 9,400
- C. 2,860
- D. 2,500
Text 1 Ecologists have long wondered how thousands of microscopic phytoplankton species can live together near ocean surfaces competing for the same resources. According to conventional wisdom, one species should emerge after outcompeting the rest. So why do so many species remain? Ecologists’ many efforts to explain this phenomenon still haven’t uncovered a satisfactory explanation.
Text 2 Ecologist Michael Behrenfeld and colleagues have connected phytoplankton’s diversity to their microscopic size. Because these organisms are so tiny, they are spaced relatively far apart from each other in ocean water and, moreover, experience that water as a relatively dense substance. This in turn makes it hard for them to move around and interact with one another. Therefore, says Behrenfeld’s team, direct competition among phytoplankton probably happens much less than previously thought. Based on the texts, how would Behrenfeld and colleagues (Text 2) most likely respond to the “conventional wisdom” discussed in Text 1?
- A) By arguing that it is based on a misconception about phytoplankton species competing with one another
- B) By asserting that it fails to recognize that routine replenishment of ocean nutrients prevents competition between phytoplankton species
- C) By suggesting that their own findings help clarify how phytoplankton species are able to compete with larger organisms
- D) By recommending that more ecologists focus their research on how competition among phytoplankton species is increased with water density
Trans-continental highways link up
- A. mining cities
- B. countries in a continent
- C. state headquarters
- D. local settlements