Peristalsis is involuntary constriction and relaxation of the intestine or another canal, it’s causes wave-like movements that push the contents of the canal forward.
Answer:
Longer hydrocarbon molecules have a stronger intermolecular force. More energy is needed to move them apart so they have higher boiling points . This makes them less volatile and therefore less flammable .
Answer:200
Explanation:
Magnification =image size/object size
