Clenching the fingers to make a fist, then relaxing and straightening them is an example of :Flexion followed by extension
To put it simply, joint will become shorter during flexion and will become longer during extension. When he made a fist, he curled ul the joints in his hand, and when straightening the arm, he elongate the joint on his elbow
In this situation, the externalities that arise from studying is the unability to enter college and obtain good-paying jobs.
From the description above, we can conclude that Jacob is much more likely to experience these externalities since he does not consider the importance of studying and how it might influence his future.
Answer:
B. spontaneous recovery
Explanation:
Spontaneous recovery: In psychology, the term spontaneous recovery is more or less associated or connected with conditioning and learning. Fundamentally, spontaneous recovery is defined as the reappearance or restoration of a response being conditioned earlier and had been destroyed. The restoration or recovery can occur only after the behavior is not exposed to the CS or conditioned stimulus for a specific time.
In the question above, the given statement is an example of spontaneous recovery.
Human activities contribute change- by change in the earths surface
