The complex energy-rich organic matter which living organisms need for life is? by Sunday | Nov 16 | Biology WAEC | 0 comments A. water B. air C. food D. mineral salts Correct Answer: Option C C. food Users Also Read These:The process by which organic matter is decomposed…The role of dead organic matter in the soil is to?INS 313 Theory Questions: Life Assurance vs.…The smallest living organism which share the…A characteristic that can possibly be shared by both…