2. Soil Science
Soil Biology — Quiz
Test your understanding of soil biology with 5 practice questions.
Practice Questions
Question 1
What term describes the microbial conversion of organic nitrogen in soil organic matter into inorganic ammonium?
Question 2
In soil food webs, which group of organisms primarily grazes on bacteria and releases nutrients, such as nitrogen, in plant-available forms?
Question 3
Which method quantifies soil microbial activity by measuring the CO₂ evolved from soil incubated under controlled conditions?
Question 4
Incorporating plant residues with a carbon-to-nitrogen ratio of 15:1 into soil will most likely result in:
Question 5
Which group of soil microorganisms is characterized by branching filamentous cells, spore formation, and production of antibiotic compounds that suppress soil pathogens?