Question

Ozone, shields the earth from the harmful ultraviolet rays from the

• A. Moon
• B. Mars
• C. Sun
• D. None of these

Answer 1

The correct option is C Sun

• The ozone layer or ozone shield is a region of Earth's stratosphere which contains a high concentration of ozone ($O_3$) in relation to other parts of the atmosphere,
  
• The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects.
• Hence Ozone shields the earth from the harmful ultraviolet rays from the sun.
• So, the correct answer is 'Sun'.