Which of the following inert gases was discovered first in the chromosphere of the sun?

Options :
  1. Neon
  2. Xenon
  3. Helium
  4. Krypton
Answer and Explanation :-

Answer: Option 3

Explanation:

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We can no more justify using nonhumans as human resources than we can justify human slavery. Animal use and slavery have at least one important point in common: both institutions treat sentient beings exclusively as resources of others. That cannot be justified with respect to humans it cannot be justified with respect to nonhumans-however "humanely" we treat them.
-Gary L. Francione