Question

The flowchart given below represents ____i____cycle. Identify A, B and C.

• A. i - Phosphorus cycle, A - Producers, B - Soil solution, C- Rock minerals
  
• B. i - Carbon cycle, A - Soil solution, B - Producers, C - Rock minerals
• C. i - Phosphorus cycle, A - Rock minerals, B - Soil solution, C - Producers
• D. i - Carbon cycle, A - Producers, B - Rock minerals, C - Soil solution

Answer 1

The correct option is C i - Phosphorus cycle, A - Rock minerals, B - Soil solution, C - Producers

The given flowchart represents the phosphorus cycle which is an example of the sedimentary cycle.

Rock is the natural reservoir of phosphorus in the form of phosphates. Minor amounts of phosphorus get dissolved in the soil solution due to the weathering of rocks which is absorbed by the roots of plants. Herbivorous animals obtain phosphorus by consuming plants and carnivores obtain it by feeding on herbivores. Decomposition of the dead plants and animals by phosphate-solubilising bacteria also releases phosphorus. This way the phosphorus is cycled.