answer:
the student <u>who</u> answers the riddle will get the prize
explanation:
- who is the pronoun
- a pronoun is something that substitutes for a noun
the answer is in the picture
where is the diagram?
without the diagram i can't help
'Acceleration' means any change in speed or direction
of motion.
so
C). No acceleration. Straight, at constant speed.
No change of speed or direction.
Psychical(you see the changes visible) and Chemical properties(they react and combine, you may see fizzing or bubbles).