Plants get nitrogen from the soil but it has to be turned into nitrates (by lighting or nitrogen fixation); this because nitrogen in the air is very unreactive, Then the animal eats the plant.
Bacteria can get nitrogen simply from the air
You need to do speed divided by time
Answer:
The correct answer is C. facilitate.
Explanation:
As lichens promote the growth of other flora and also microorganisms, it facilitates the arrival of other species that can grow over the layer that has already been formed by the facilitation of the lichen and others.
