The building from the list provided with the highest likelihood of air pollution is a tightly sealed house with an unvented water heater. The school with leaks will let air exchange happen so that isn't it, and having a carbon monoxide detector only reports existing air pollution it doesn't prevent air pollution, it could have issues but we don't know. The tightly sealed house with the unvented water heater is a near sure thing.
Answer:
C IS THE ANSWER I ALSO GOT BULLYING
Answer: A Concussion is when you add violent movement to the brain, this causes the brain to move inside the head and bump against the skull. As a result, neurons are damaged and the brain may bruise at the site of impact.
cause: A Concussion is caused by a blow to the head or a violent shaking of the head and body.
I'm only is 7th grade so i hope this helps! :)
Regular exercise, eating fruits vegetables along with good food choices. Stay hydrated