Which of the following is highly dangerous radioactive pollutant

Options :
  1. Strontium -90
  2. Phosphorus -32
  3. Sulphur -35
  4. Calcium- 40
Answer and Explanation :-

Answer: Option 1

Explanation:

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All life is only a set of pictures in the brain, among which there is no difference betwixt those born of real things and those born of inward dreamings, and no cause to value the one above the other.
-H.P. Lovecraft