Question

Consider the following statements.

I. Acid rain is caused by emission of carbon dioxide, sulphur dioxide and nitrogen oxideds.

II. The most important gas which leads to acidification is sulphur dioxide.

Which of the statements(s) given above is/are correct?

(a) Only I

(b) Only II

(c) Both I and II

(d) Neither I nor II

Answer 1

(c) Both I and II

Sulphur dioxide is mainly responsible for acid rain. Acid rain is made up of highly acidic water droplets due to air emissions, most specifically the disproportionate levels of sulphur and nitrogen emitted by vehicles and manufacturing processes.