No, some schools have as little as 6 periods. (My school has 6.)
8
7 periods and 12 groups
8 and 18 year old.
There are 2 elements in the first period, 8, 8 elements in 2nd and 3rd periods respectively,
It varies. Arena polo has 4 7 minute periods called Chukkas
8
Only one.
THe factors are the same
it breaks and this is why women have periods, women have periods as soon as they hit puberty ranging from 8 to 18.
usually 8 minutes
I have been suffering lower back pain on the left side and Irregular periods