Question

1. why was dr. linus pauling unpopular in some circles?

dr. pauling was unpopular due to his opinion on nuclear weapons testing.
dr. pauling was unpopular due to his immigration status.
dr. pauling was unpopular due to his belief in mandatory vaccine inoculations.
dr. pauling was unpopular due to his work in antibiotics.

Explanation:

Dr. Linus Pauling was a vocal opponent of nuclear - weapons testing during the Cold - War era, which made him unpopular in some circles. His stance was contrary to the interests of certain groups involved in or supportive of nuclear - weapons development and testing.

Answer:

Dr. Pauling was unpopular due to his opinion on nuclear weapons testing.