The figure depicts the outline of a large fairy ring that has appeared overnight in an open paddock, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 metres below the soil surface.
At which location is the mycelium currently absorbing the most nutrients per unit surface area, per unit time?

Question

The figure depicts the outline of a large fairy ring that has appeared overnight in an open paddock, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 metres below the soil surface. 
At which location is the mycelium currently absorbing the most nutrients per unit surface area, per unit time?

Quizplus · Accepted Answer

The Answer of The figure depicts the outline of a large fairy ring that has appeared overnight in an open paddock, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 metres below the soil surface. 
At which location is the mycelium currently absorbing the most nutrients per unit surface area, per unit time?

The Figure Depicts the Outline of a Large Fairy Ring