Question

Consider the following statements about ozone :
(a) Ozone is poisonous gas.
(b)Ozone shields the earth's surface from the infrared radiation from the sun.
(c) Ozone is a product of UV radiations acting on oxygen molecule.
(d) At the lower level of the earth's atmosphere, ozone performs most essential function.
The correct statements are

• (a) and (b)
• (a) and (c)
• (b) and (c)
• (b) and (d)

Answer 1

The Correct Option is B

- Statement (a): True. Ozone (O3) is poisonous and harmful when inhaled, especially in the lower atmosphere.
- Statement (b): False. Ozone shields the earth from harmful ultraviolet (UV) radiation, not infrared radiation.
- Statement (c): True. Ozone forms in the stratosphere when UV radiation splits oxygen (O2) molecules into oxygen atoms, which combine with O2 to form ozone (O3).
- Statement (d): False. At the lower level (troposphere), ozone is a pollutant, not performing essential functions.