Central and Eastern Europe experienced ethnic tensions in the early 1900s primarily because A) similarity in cultures and traditions caused problems between ethnic groups.
B) military powers were unable to stop the conflicts between ethnic groups.
C) many ethnic groups shared unlimited amounts of territory.
D) many ethnic groups wanted their own nation-states.

1. what is significant about the power that russian federal cities are granted? 2. what is significant about official languages in russian republics? why would it matter?

What was a result of the use of farming machines

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal