What type of biodiversity restoration are biologists practicing when they plant nitrogen-fixing plant species in an area where that nutrient is depleted?

a.
biological augmentation
b.
bioremediation
c.
canopy fogging
d.
hot spot protection
e.
reforestation

E.  reforestation

Explanation:

Reforestation is a process of planting trees in an area so as to conserve the land as future forest. According to the given situation, reforestation is the practice which can be used by the biologists to grow nitrogen fixing plants in an area so as to increase the nutrient concentration of the soil which have been depleted.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]