Rahul sees a flock of birds. he watches as the flying birds land in neat little rows on several power lines. which change of state does the motion of the birds most closely model?

Deposition

Explanation:

here we know that flock of birds are flying in the sky initially and there is no finite position of all birds at a given time instant.

Now After some time all birds start to land on a neat little rows of power line so here the position of bird will be fixed and they all are at finite fixed position now.

So this finite fixed position of birds shows the phenomenon of accumulation at a fixed point

so this change in state of motion of the birds will show the deposition phenomenon of the birds at the power line