Decided to drop atomic bombs on Hiroshima and Nagasaki, Advocated development of Hydrogen Bomb Refused to drop atomic bombs on China

President Harry S. Truman

Explanation:

The actions given were all undertaken by former President Harry Truman after he took over from President Roosevelt when the latter died in the last year of the second World War.

Truman decided to drop the atomic bombs on Hiroshima and Nagasaki after he realized that a land invasion would cost too many lives. He also supported the development of the Hydrogen bomb which was worse than the atomic bomb and during the Korean War, he refused to drop atomic bombs on China because he saw that it would escalate the conflict.

polling is a process and the outcome is not involved in the process itself.

the outcome, which is an unfavorable rating for a particular candidate is not affected by the mechanical process of polling.

it rather depends on the number of people voting in favor of the candidate.

this is an outcome of people's preferences.

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.