Answer:
The two forces that form an "action-reaction" pair that obeys Newton's third law are forces 2 and forces 3
Explanation:
The force by which student pulls the earth will be equal in magnitude and opposite in direction to the force by which earth pulls the student l.e his weight.
Therefore, the two forces are
3 = the force of the student pulling on the earth and
2 = the weight of the student
