Jamb Biology Past Questions For Year 1989
Question 56
Which of the following is a dangerous product of coal burning?
- A. Sulphur dioxide
- B. Carbon dioxide
- C. Carbon
- D. Nitrogen
Question 57
which of the following disease can be caused by a bacterium?
- A. Ringworm
- B. Poliomyelitis
- C. Malaria
- D. Syphilis
Question 58
which of the ways of controlling bilharzia can result in pollution?
- A. clearing water weeds on which the snail feed
- B. Treating infected people with drugs
- C. Preventing contamination of water by infected urine and faeces
- D. Applying chemical to kill the snails
Question 59
Farmers practise crop rotation because it
- A. helps to prevent soil erosion
- B. allows two crops to be planted at the same time
- C. helps to conserve soil fertility
- D. is an alternate to shifting cultivation
