ECOLOGY - Jamb Biology Past Questions and Answers

Question 76:

• JAMB 1987

Nitrifying bacteria are important because they

A. Release nitrogen to the atmosphere
B. Convert atmospheric nitrogen to ammonia
C. Combine ammonia with nitrgen
D. Oxidize ammmonium salt to nitrates

Question 77:

• JAMB 1987

The process by which lime is added to clay soil is known as

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

Question 78:

• JAMB 1987

Which of the plants is likely to have broad leaves and thin cuticle

A. R
B. S
C. T
D. U

Question 79:

• JAMB 1987

Which of the plants is likely to be desert species?

A. U
B. T
C. S
D. R

Question 80:

• JAMB 1988

The turbidity of a pond can be measured using the

A. Anaemometer
B. Secchi disc
C. Theodolite
D. Hydrometer