C- exhaustible is the correct answer
Hope this helps ;D good luc
Answer:a stationary front.
Explanation:
they allow repeated thunderstorms to move across the same area.
The Photosynthesis process is divided into two stages, light and dark stages. Glucose is always produced at the dark stage of the photosynthesis process. The light stage of the process occur during the day. In the light stage, the plant capture energy from the sun by the help of chlorophyll, the energy obtained in the day is used during the dark period to produce glucose.
The answer to the question is D as the purpose for a control group is to be a comparison to the experimental group (the group that is a part of the experiment)