Question

what is a biogeochemical cycle?
○ a process by which bacteria convert nitrates into nitrogen gas
○ a process that converts light energy into chemical energy
○ a process by which water enters the atmosphere by evaporating from the leaves of plants
○ a process that recycles elements and other matter through the biosphere
done

Explanation:

• Option 1 describes denitrification (part of N cycle, not the whole biogeochemical cycle concept).
• Option 2 is photosynthesis (energy conversion, not element recycling).
• Option 3 is transpiration (water cycle part, not the overall cycle definition).
• Option 4 matches: Biogeochemical cycles (like C, N, H₂O cycles) recycle elements (C, N, etc.) and matter through biosphere (living + non - living components).

Answer:

D. a process that recycles elements and other matter through the biosphere