Answer:
The curves help the spine absorb stress from body movement and gravity. When viewed from the back, the spine should run straight down the middle of the back.
Explanation:
Answer:
baseball, obstruction is when a fielder illegally hinders a baserunner running within the basepath. Baserunners are generally permitted to run from base to base without being physically blocked or hindered by a fielder.
The long-term effects of damage to your lungs (possibly lung cancer) and the possibility of giving those around you second-hand smoke.
