Which process always involves the movement of materials from inside the cell to outside the cell?
a phagocytosis
b exocytosis
c endocytosis
d osmosis

B) Exocytosis.
Hope this is of help to you, and happy studying~!
~{Isle of flightless birds}

This describes the process of exocytosis. You can tell, not only by the definition but by the roots of the word, exo- means out of.

Good luck and good day!~ <3

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.