Question

which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?
more soldiers died as a result of incorrect blood typing.
more soldiers who had lost a limb returned home.
more donations were needed as a result of poor storage techniques.
more organizations spoke out against the war.

Explanation:

Improvements in blood handling would lead to better medical care for soldiers. Incorrect blood typing (first option) would be less likely with improvements. Poor storage techniques (third option) would be addressed by improvements. Organizations speaking out against war (fourth option) is not related to blood - handling improvements. When blood - handling is improved, more soldiers, even those who lost a limb (due to better survival rates from blood - related medical care), could return home.

Answer:

More soldiers who had lost a limb returned home.