D. the <span>stomata close to preserve water and gas exchange decreases.</span>
I believe that the answer to this question is, that laws can be made to prevent certain things/ amounts of things to be used up.
I’m pretty sure it’s the second one
C. Positive Feedback
This is because a response to a stimulus( low blood pressure) acts in the same direction as the stimulus ( even lower blood pressure).
This is opposed to negative feedback where the response would go in the operate direction of the stimulus ( I.e. blood pressure increasing in response to low blood pressure)
Answer:
The ability to maintain vegetation?
Explanation: