Answer:
Friction is the answer to the blank space
B, Matthew is skipping meals which is a harmful behavior in its self, as well as smoking and sleeping at random hours.
Step 5 is what I would say sorry if that did not answer you question
Answer:
Buy Chapstick or use vaseline.
Explanation:
I used to live on a tropical island and I moved to the desert 6 years ago. Since it is so dry and my body is not used to it, I can't go 2 days without chapstick or my lips will become super chapped.