What factors led to the beginning of world war ii in europe?

a.) various independence movements in serbia against austria-hungary
b.) the rise of aggressive nationalism among some of the nations defeated in world war i
c.) the rise of communism in soviet russia, which was seen as a threat by many european nations
d.) rising competition among european powers for colonies and trading posts in africa and asia

During an experiment measuring the change in temperature of a chemical reaction your digital thermometer breaks. you have the same model thermometer available to use how do you proceed with the experiment a. continue on with the new thermometer b. begin the experiment again with the new thermometer c. calibrate the new thermometer and make a notation regarding the change in equipment d. calibrate the new thermometer and begin the experiment again