The statement that best describes the effects that removing the arrow pointing from F to C would have on the environment is: Removing this step decreases carbon storage in plants.
The arrow from F to C represents the process of plants taking in carbon dioxide from the atmosphere during photosynthesis.
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
If we remove the arrow from F to C, it means that plants are no longer absorbing carbon dioxide from the atmosphere.
This would lead to a decrease in carbon storage in plants, as they would no longer be able to convert carbon dioxide into organic matter.
The other statements are incorrect:
Removing this step does not increase photosynthesis in the next step. In fact, it prevents photosynthesis from happening in the first place.
Removing this step does not increase the amount of carbon in the soil. In fact, it would likely decrease the amount of carbon in the soil, as plants would no longer be returning carbon to the soil when they die and decompose.
Removing this step does not decrease the amount of carbon in the air. In fact, it would likely increase the amount of carbon in the air, as plants would no longer be absorbing carbon dioxide from the atmosphere.
Therefore, the best statement to describe the effects of removing the arrow from F to C is that it would decrease carbon storage in plants.
The probable question may be:
"Which of the following statements best describes the effects that removing the arrow pointing from F to C would have on the environment?
O Removing this step increases photosynthesis in the next step.
O Removing this step increases the amount of carbon in the soil.
O Removing this step decreases the amount of carbon in the air.
O Removing this step decreases carbon storage in plants."