Question

Consider the following statements regarding Ozone: 

I. Ozone contributes to 3-7% of Greenhouse effect 

II. The largest net source of tropospheric ozone is influx from the stratosphere 

III. Large amounts of ozone are also produced in the troposphere by photochemical reactions, the amounts increasing with high levels of air pollution. 

(a) I & II (b) II & III (c) Only III (d) All the above

Answer 1

(d) Ozone contributes to 3-7% of Greenhouse effect. The largest net source of tropospheric ozone is influx from the stratosphere. Large amounts of ozone are also produced in the troposphere by photochemical reactions, the amounts increasing with high levels of air pollution.