Past Questions And Answers
A silicon material is dopped with an element of a certain group and an n-type semi-conductor is formed. the most likely group of the element is
- A. V
- B. III
- C. I
- D. II
The shaded portion in the venn diagram is
- A. x ∩ z
- B. x' ∩ y ∩ z
- C. x ∩ y' ∩ z
- D. x ∩ y ∩ z'
ICT Means
- (a) Information and Communication Technology
- (b) Information Communication Technology
- (c) International Communication Technology
- (d) Internal Community Technology
Notational Congress of British West Africa (NCBWA)failed to achieve its aims initially because
- A. the chiefs and Governors opposed those aims
- B. African workers opposed those aims
- C. Africans employed Europeans to write those aims
- D. the congress failed to bring foreigners into its fold
According to Paul, before his conversion, he persecuted the church violently to
- A. destroy it
- B. have it conform to the law
- C. make it desirable to the gentiles
- D. purge it
An individual in the AB blood group is a universal recipient for blood donation because
- A. all the red blood cells do not carry antigen
- B. all the red blood cells carry antigen
- C. all the red blood cells carry antigen
- D. there are no anti-A and anti-B antibodies in the serum
A serious environmental hazard which causes both vertical lateral displacement of part of the earth's crust is?
- A. earthquake
- B. volcano
- C. landslide
- D. weathering
(a) Explain the term soil structure and state its importance in agriculture. (b) State four properties each of clay and sandy soil.
View Discussion (0)WAEC 1990 THEORYThe source of funds available to a local government/district assembly includes
- A. common fund allocation
- B. none of the above
- C. excise duties
- D. road tolls
factorize m3 - m2 + 2m - 2
- A. (m2 + 1)(m - 2)
- B. (m - 1)(m + 1)(m + 2)
- C. (m - 2)(m + 1)(m - 1)
- D. (m2 + 2)(m - 1)