Nutrient Cycling MCQs (Quiz 1) Posted on May 29, 2026Author agropublishers 0 1. ______________________ is called nutrient cycling The one-way movement of nutrients from soil to plants only The transfer of energy between trophic levels in a food web The continuous movement and recycling of nutrients between living organisms and the environment The permanent storage of minerals in rocks and geological formations 2. In an ecosystem, detritus refers to ____________ Dissolved minerals in water Soil nitrogenous mass Dead organic matter and biological waste Living microbial biomass 3. . __________________________ termed as a nutrient A source of sunlight for producers A decomposed organic residue A non-essential environmental component A chemical substance required for growth and survival of organisms 4. Among the living organisms decomposers are generally from _____________and ______________ Lions and wolves Trees and shrubs Grasshoppers and rabbits Bacteria and fungi 5. A biogeochemical cycle involves the interaction of ________________ Biological and physiological factors Biological, geological, and chemical processes Geological and physiological processes Chemical and physiological reactions 6. Which nutrient cycle is strongly linked with nucleic acid synthesis? Oxygen cycle Phosphorus cycle Sulfur cycle Carbon cycle 7. _______________ of the following is an example of an abiotic component in an ecosystem Deer Trees Sunlight Fungi 8. An ecosystem consists of all _____________ Microorganisms and soil Plants and animals Abiotic components Living organisms and their physical environment interacting together 9. Mineralization is the process of ____________ Fixing atmospheric nitrogen Converting minerals into organic matter Removing nutrients from ecosystems Converting organic nutrients into inorganic forms 10. In an ecosystem consumers obtain nutrients by _________ Chemosynthesis Photosynthesis Nitrogen fixation Feeding on other organisms Loading … Question 1 of 10
