1. When asteroids collided some of the broken materials fall into Earth's orbit. What do astronomers call the debris when it hits planet Earth?

meteoroids

Explanation:

when an asteroid (or really anything else) falls to earth, it is called a meteoroid

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

answer; how far out of place which the object finished relative to the starting location;