1) what causes acid rain? a) dirt b) pollution c) rain 2) what is acid rain? a) sulfur dioxide and nitrogen oxides make acid rain a burning rain b) water c) snow 3) Where does it occur? a) highly polluted areas b) nowhere 4) Why is acid rain harmful? a) acid rain can be harmful to plants and buildings b) it is not harmful 5) What can solve acid rain? a) to reduce the amount of pollution that we use b) sun

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