Q.1.
Which does NOT cause acid rain?
Q.2.
Which of these is a MAJOR cause of acid rain?
Q.3.
What is the PH Scale used for?
Q.4.
Which of the following gases are naturally occurring and cause acid rain?
Q.5.
Acid rain has a pH <
Q.6.
Which of these contributes to acid rain?
Q.7.
What human activity is the primary source of acid rain?
Q.8.
Which of the following is not a cause of acid rain?
Q.9.
Acid rain can damage
Q.10.
How is acid rain formed?