Waec Biology 1989 Past Questions and Answers

Question 41:

• WAEC 1989

Which of the following methods is used in food preservation for a long period?

A. Adding oil to food
B. Exposing food to fresh air
C. Keeping the food in a store
D. Warming the food daily
E. Salting and drying the food

Question 42:

• WAEC 1989

Maize is best stored against insect attack

A. On raised platforms
B. In fumigated silos
C. In a sunny area
D. While still on the cob
E. In humid metal tanks

Question 43:

• WAEC 1989

Which of the following is not an effect of overcrowding on a population?

A. Death
B. Competition
C. Commensalism
D. Aggression
E. Cannibalism

Question 44:

• WAEC 1989

The term used in describing the effective management of national resources by man is

A. Preservation
B. Utilization
C. Economics
D. Development
E. Conservation

Question 45:

• WAEC 1989

Breathing roots are characteristic structures of plants growing in

A. Mangrove swamp
B. Desert
C. Shrub biome
D. Savannah
E. Tropical rain forest