Waec Biology 1992 Past Questions and Answers

Question 31:

• WAEC 1992

The use of predators or parasites to control pests in the farm is known as

A. Predator control
B. Chemical control
C. Biological control
D. Animal control
E. Parasitic control

Question 32:

• WAEC 1992

Which of the following substances cannot control the growth of harmful microoganisms?

A. Antibiotics
B. Hypertonic salt solution
C. Disinfectants
D. Isotonic sugar solution
E. Antiseptics

Question 33:

• WAEC 1992

Which of the following is the underling principle in the adoption of biological control of pests?

A. Knowledge of agricultural practices by the farmer
B. Relationship between plants and animals
C. The presence of poisonous chemicals in the farm
D. The relative population of plants and animals in the farm
E. The predator-prey relationship in the ecological community

Question 34:

• WAEC 1992

The following agencies are responsible for conservation in Nigeria except

A. Forestry Department
B. Nigerian Conservation Society
C. Games Reserve Authority
D. Nigerian Red Cross Society
E. Ministry of Agriculture and Natural Resources

Question 35:

• WAEC 1992

The largest game reserve in Nigeria is the

A. Kainji Game Reserve in Niger State
B. Zamfara Forest Reserve in Sokoto State
C. Yankari Game Reserve in Bauchi State
D. Borgu Game Reserve in Niger State
E. Oban Hills Game Reserve in Cross River State