Asolution that is a 4 on the ph scale is a
a) weak acid
b) strong acid
c) weak base
d) strong base

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.