Acid rain and Limestone

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
r a i n
A process in which one or more substances are changed into others
2.
a i
Any of various water-soluble compounds having a sour taste and capable of turning litmus red
3.
r a
Water falling from clouds
4.
l i m t
A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
5.
l i w a
6.
c o d x i d
A heavy odorless colorless gas formed during respiration and by the decomposition of organic
7.
c r r n
A state of deterioration in metals caused by oxidation or chemical action
8.
p l t i
Undesirable state of the natural environment being contaminated with harmful substances as