Question

what is the primary reason that arthur compton disagrees with the writers of the oak ridge petition?
failure to use the bomb might lead to greater american loss of life.
the new bombs were not capable of making an effective military demonstration.
the use of atomic weapons had been outlawed by international agreement.
the proposal is to make a technical but not military demonstration, preparing the way for a recommendation by the united states that the military use of atomic explosives be outlawed by firm international agreement.
i note that two important considerations have not been mentioned:
(1) that failure to make a military demonstration of the new bombs may make the war longer and more expensive on human lives, and
(2) that without a military demonstration it may be impossible to impress the world with

Explanation:

The text mentions that failure to make a military demonstration may make the war longer and more costly in human lives. This implies that not using the bomb (failing to make a military - demonstration) might lead to greater American loss of life, which is why Arthur Compton disagrees with the writers of the Oak Ridge Petition.

Answer:

Failure to use the bomb might lead to greater American loss of life.