Acid
Rain
 
Screen 1 of 1
Acid
rain
 
is
rain
 
that
has
 
a
 
pH
 
level
lower than
5.
 
Normally,
rain
 
water
has
 
a
 
pH
around
 
5.6.
Acid
rain
 
comes
mainly
from
natural
 
events
 
like
volcanic eruptions,
forest fires.