You can make a scary face by grabbing your bottom lip with your top teeth. When you do this, your mandible moves in an anterior direction. This is an example of

Retraction.

Explanation:

When someone suffers from lower eyelid retraction, it means that their lower eyelid has actually been pulled downward which is an example of a scary face.

Another example is by grabbing your bottom lip with your top teeth. When you do this, your mandible moves in an anterior direction.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick