Answer:
Nitrogen fixation
Explanation:
The nitrogen fixation is when the nitrogen from the air and from the ground are used to syntesize nitrate (NO2-) which is assimilated by the roots of plant and then transported to all of the plant.
The nitrogen is worth for plants because helps its growing and to synthesize chlorophyll.
I believe it is A because Living things respond to changes, each and every living organism is made up of cell and adapting to changes is same as responding to changes.So, only one left is A.
For the answer to the question above,
An area where soil has eroded experience <u>"</u><u>loss of nutrients. "</u>
The topmost layer of soil is called the topsoil and is the most fertile. Soil erosion results in the loss of soil fertility and makes the land barren
The main cause of soil erosion is the removal of vegetation, which exposes the topsoil to water and wind. Wind and water are the main agents of soil erosion.
Water erosion can be sheet erosion, rill erosion, gully erosion or riparian erosion.
The answer is B) catastrophic fluid loss