Vocabulary

When certain gases are _________ into the air, acidic rain forms.

• released

• sent

• left

• kept

Ecological means ______.

• The interaction of living beings and their environment.

• How the weather affects the environment.

• The reason for acid rain.

• How animals live.

Acid rain has _______ consequences on the water system.

• harmful

• impacts

• positive

• harm

Acid rain _______ soil bacteria, and makes it unhealthy.

• destruction

• destroys

• destroy

• increases

Acid rain makes it more ________ for fish to breath.

• easy

• difficult

• easier

• healthy

Power plants and ______ are the main reasons for increased acid rain.

• factories

• houses

• plants

• volcano