Why did the battle of the somme start?

( keep answer relatively short i have to fit this on an index card)

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

Ineed asap ! name the differences between communism and fascism. 1who controls the government and how do they stay in power? 2how are the people’s personal lives and decisions affects? 3what is the government’s view on the economy and how it should be handled? 4what is the government’s view on other countries and their relationship with them?

The "nationalists" and fascists battled against the "republicans" and communists in a civil war in the 1930s in