Past Questions And Answers
The oxidation number of phosphorus in PO43- is
- A. + 1
- B. +2
- C. +3
- D. +5
Which of the following is not a major type of migration?
- A. rural - urban
- B. international
- C. inter - community
- D. urban - rural
The two components of sovereignty are
- A. influence and political authority
- B. political culture and political socialization
- C. legal and political independence
- D. political and economic developments
The probabilities that John and Jane will pass an examination are 0.9 and 0.7 respectively. Find the probability that at least one of them will pass the examination.
- A. 0.28
- B. 0.67
- C. 0.72
- D. 0.97
The major focus of the trading account is to show
- A. net profit
- B. gross margin
- C. total purchases
- D. total sales
There was a terrible storm in your town during which houses were destroyed. Your family house was among those affected. Write a letter to your uncle working overseas describing the disaster and requesting for his help in reconstructing the house.
View Discussion (0)WAEC 1991 THEORYThe grouping of a population into males and females is known as the
- A. geographical distribution
- B. age distribution
- C. sex distribution
- D. man-woman distribution
The most serious environment effect posed by hazardous wastes is
- A. contatmination of ground water
- B. destruction of habitat
- C. air pollution
- D. increase use for land to landfills
A simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place?
- A. 8s
- B. 4s
- C. 2√2s
- D. √2s
Find the sum to infinity of the series 1/2 , 1/6, 1/18, .....
- A. 2/3
- B. 1/3
- C. 3/4
- D. 1