Ultraviolet rays
Infra-red rays
All radiations of Light
Cosmic rays.
Answer is Right!
Answer is Wrong!
The ozone layer absorbs ultraviolet rays. Ultraviolet rays are a type of electromagnetic radiation that is harmful to humans and other living things. The ozone layer protects us from these harmful rays by absorbing them.
Infrared rays are a type of electromagnetic radiation that is not harmful to humans. They are used in many technologies, such as remote controls and night vision goggles.
All radiations of light are not harmful to humans. Visible light, for example, is necessary for photosynthesis and vision.
Cosmic rays are a type of high-energy radiation that comes from outside the solar system. They can be harmful to humans if they are absorbed in large doses.
Therefore, the correct answer is A.