The process responsible for this is mass movement.
Switch A and D, but other than that your answers are correct.
An astronomical body is an object in space.
A comet is a celestial object consisting of a nucleus of ice and a stream of gas and dust.
A moon is an astronomical body that orbits around a planet.
A galaxy is a system of start held by gravitational attraction.
Answer: They do this to obtain the vital nitrogen that they need to grow.
Explanation:
13-13= 0, 19-13= 6, so then 0-6= -6
