Question

'Ozone hole' refers to

• A. reduction in the thickness of ozone layer in stratosphere
• B. reduction in ozone thickness in troposphere
• C. hole in the ozone layers in stratosphere
• D. increased concentration of ozone in troposphere

Answer 1

Answer: (A)

Ozone in the stratosphere is considered good ozone as it helps in limiting the entry of UV-rays to Earth's surface and protecting us from skin-burn and skin cancer due to over-exposure. Due to pollution ozone layer gets depleted resulting in making the ozone layer thinner. Such a phenomenon is referred to as the 'Ozone hole'.