Answer:
Yes!
Explanation:
It keeps bones and joints in the correct position, so muscles are being used properly. I got this from the Internet, so search it up and it'll help you a lot!
-Dub
Answer: True
Explanation: If you don't have a straight back, you could get scoliosis. My brother almost had scoliosis, but we started reminding him to keep he's back straight, and it got a lot better. Having a good posture can help keep you body neat in line, keep you're bones and muscles in line, help's keep you're spine straight, and other helpful facts that i can list.
