Exploding worksheet columns and rows is a useful technique for viewing large worksheets that extend beyond the window.

these  signals travel  down a part of the neuron called the axon, which is like a wire that carries the  signal  to othernerve  cells. on average a  nerve  cell sends a  signal  at about 50 meters per second, which is over 100  miles  an hour!

you can not change you age soon as you signed up. the only way is too delete your account and use another account to sign up and put your correct age.