Match List - I (Process) with List - II (Outcome)

Options:

Correct option is C

Explanation:
· Biological nitrogen fixation → (III) Conversion of nitrogen gas to ammonium Fixation involves converting atmospheric N₂ into ammonia (NH₃) or ammonium (NH₄⁺), which plants can use.
· Nitrification to inorganic form → (I) Conversion of ammonium to nitrate This is the process by which NH₄⁺ is converted to NO₃⁻ through nitrite (NO₂⁻).
· Immobilization → (IV) Incorporation of inorganic nutrient elements into organic forms Here, microbes assimilate inorganic N (like NH₄⁺ or NO₃⁻) into organic biomass.
· Mineralization → (II) Conversion of elements from organic This process breaks down organic matter to release nutrients in inorganic forms.
Information Booster:
· The nitrogen cycle involves several crucial steps that convert nitrogen between different chemical forms. These transformations enable nitrogen to move between the atmosphere, soil, and living organisms. Biological nitrogen fixation is carried out by symbiotic bacteria, while nitrification and mineralization are carried out by specific groups of soil microbes. Immobilization and mineralization are key in balancing the nutrient availability in ecosystems.