I don't think so. The uterus has a pretty good grasp on your baby. If the baby was almost ready to pop out, it still wouldn't fall out of the stomach. But a bump may hurt the baby's growth developement and may cause a miscarriage. Remember I said MAY not WILL. :0)
Depends on how hard the 'bumping'. Simple hits on a flat side of a door or desk would not cause brain damage. If you hit the corner, it still wouldn't cause B.D. but it would certainly cause more outer damage, bruise, cuts etc. The only way to cause brain damage would be to hit your head with tremendous force that your brain actually moves within your skull, as might happen in a car accident, a fall or repeated hits to the head, playing football for example.
No.
Yes because you need to keep the child up to make sure there's no concussion
Mass does not cause an object to fall faster.
yes
consult a doctor, not the internet
If we talk tennis or golf it's safe but if we talk team sports where you risk bumping into people and fall, that would not be safe.
The Chinese were the cause of the fall of the mongols
cause rocks fall!
Sperms do not affect the hair in anyway, nor will it cause hair fall. cause hairfall.
Carelessness and inattention is most likely the cause of someone to fall overboard.
yer