1990 - WAEC Biology Past Questions and Answers - page 5
41
Which of the following is an autotrophic mode of nutrition?
A
Chemosynthesis
B
Saprophytism
C
Parasitism
D
Symbiosis
correct option: a
Users' Answers & Comments42
Which of the following is not a way of reducing air pollution?
A
Siting factories and power stations away from residential areas
B
Building tall factory chimneys
C
Passing waste gases through filters and absorbers
D
Using lead-free petrol in cars
correct option: e
Users' Answers & Comments43
Which of the following factors is not associated with aquatic habitat?
A
Temperature
B
Light intensity
C
Turbidity
D
Wave action
correct option: e
Users' Answers & Comments44
Which of the following types of soil has the highest water-retaining capacity?
A
Clay
B
Laterite
C
Loam
D
Gravel
correct option: a
Users' Answers & Comments45
Changes in energy flow between organisms in a habitat can be represented by a
A
pyramid of biomass
B
pyramid of numbers
C
pyramid of energy
D
food chain
correct option: c
Users' Answers & Comments46
Which of the following processes is not involved in the carbon cycle?
A
Burning
B
Decay
C
Transpiration
D
Respiration
correct option: c
Users' Answers & Comments47
Which of the following processes are involved in a water cycle?
A
Evaporation, condensation and precipitation
B
Evaporation, percolation and transpiration
C
Evaporation and precipitation
D
Evaporation and transpiration
correct option: a
Users' Answers & Comments48
Water in the human body is derived from the following sources except through
A
drinking water
B
food substances
C
cytoplasm of worn-out cells
D
respiratory activity
correct option: e
Users' Answers & Comments49
The conservation of natural resources can be achieved by the following except
A
creation of national parks
B
formation of conservation societies and agencies
C
establishment of game reserves
D
deregulated harvesting
correct option: d
Users' Answers & Comments50
Water rises most rapidly in
A
sandy soil
B
clayey soil
C
sandy-loam soil
D
loamy soil
correct option: a
Users' Answers & Comments