The human eye can distinguish between different colours due to the presence of

Options :
  1. yellow spot
  2. red spot
  3. cones
  4. rods


Answer and Explanation :-

Answer: Option 3

Explanation:

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I believe the simplest explanation is, there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization that there probably is no heaven and no afterlife either. We have this one life to appreciate the grand design of the universe and for that, I am extremely grateful.
-Stephen Hawking