Pl
the question is "hiw does acid precipitation cause rocks to weather faster? "

pl keep it as simple as possible

12

Because it causes them to move, and so they weather that way. 

The rain hits the rocks and after time the deteriorate

The offspring will be blood type aa, bb, ab and oo or i

No because the eaeht is on a 23.5 degree axis tilt and so when it is winter the northern hemisphere is pointing away from the sun and the soutubern hemisphere is pointing toward the sun