Biology Practice Test – Nutrient Cycling In Nature (Questions with Answers and Explanations)

The nitrifying bacteria, Nitrosomonas, convert ammonia to ______ (JAMB 1994)

A. nitrites
B. nitric acid
C. nitrates
D. nitrous oxide.

Evaporation and transpiration are respectively represented by the components labeled ______ (JAMB 2005)

A. I and II
B. II and III
C. III and IV
D. IV and I

During thunderstorms the energy of lightning discharge causes ______ (JAMB 1980)

A. oxygen and nitrogen to combine
B. more carbon dioxide to be formed
C. nitrites to be converted to nitrates
D. nitrates to be converted to nitrogen

The following microorganisms are involved in Nitrogen cycle except ______ (NECO 2017)

A. azotobacter
B. saccharomyees
C. nitrobacter
D. nitrosomonas

The substance labeled II originates from ______ (JAMB 2000)