Answer:
She places one pot in a sunny window, one under normal classroom lights, and one in a dark room.
Explanation:
An independent variable is the only thing that changes in a proper experiment.
The correct answer is bacteria. Bacteria abundant in soil is the main source of its organic matter. This is because bacteria release energy in their systems which causes the soil to be more fertile and more capable of sustaining plant material. Without bacteria general processes of soil formation will not be possible.
the answer to your question is 1 1/8
