Decomposition of soil organic matter is mainly caused by? by Sunday | Jan 12 | Agricultural Science WAEC | 0 comments A. bacteria B. algae C. fungi D. nematodes Correct Answer: Option A – bacteria Users Also Read These:Which of the following statement is a disadvantage…The gas produced during decomposition of matter is?The gas obtained as a product of anaerobic action on…Which of the following organisms will not bring…The complex energy-rich organic matter which living…