Answer:
A.
4Fe + 3O2 2Fe2O3 .........................
Increased soul protection by crop residues and plants adding organic matter to the soil through crop rotations manures or crop residues and carful management of fertilizers
The point
is on the graph.
<h3>Procedure - Inverse variation</h3><h3 /><h3>Inverse variation model</h3><h3 />
An <em>inverse</em> variation is represented by the following formula:
(1)
Where:
- Independent variable.
- Dependent variable.
- Proportionality constant.
We can eliminate the proportionality constant by creating the following relationship:
(2)
<h3>Determination of another point</h3>
If we know that
,
and
, then the remaining variable is:


The point
is on the graph. (Correct choice: C) 
To learn more on inverse variations, we kindly invite to check this verified question: brainly.com/question/4838941
<h3>Remark</h3>
The statement is incomplete. Complete form is described below:
<em>Point </em>
<em> is on the graph of an inverse variation. Which of the following ordered pair is on the graph? </em><em>A.</em><em> </em>
<em>, </em><em>B.</em><em> </em>
<em>, </em><em>C.</em><em> </em>
<em>, </em><em>D.</em><em> </em>
<em>.</em>