ECOLOGY - Jamb Biology Past Questions and Answers

Question 101:

• JAMB 1990

Which of the following constitute pollution?

A. Droppings from birds
B. Loud disco sound
C. A pack of cigarettes
D. Refuse in an incinerator

Question 102:

• JAMB 1990

An acidic soil can be improved upon by

A. Sedimentation
B. Leaching
C. Flocculation
D. Watering

Question 103:

• JAMB 1991

A food web is more stable than a food chain because

A. It contains more organisms
B. It has greater energy source
C. It is not easy to destroy
D. Every organism has an alternative source

Question 104:

• JAMB 1991

Which of the following diseases can be prevented by innoculation?

A. Syphilis
B. Malaria fever
C. Tuberculosis
D. Acquired Immune Deficiency Syndrom

Question 105:

• JAMB 1991

Fertilizers are lost from the soil through

A. Sheet erosion and evaporation
B. Leaching, underground seepages and run-off
C. Sheet erosion, gully erosion and wind erosion
D. Wind erosion and heavy rainfall