What was the causes of the green revolution?

What was Ulysses S Grants job before presidency? How you write a letter for food allowance? Who fought for independence in the US? Why did outlaws eventually disappear in the west? What religion did William the Conqueror believe in? When was Maines constitution adopted? Which name was given to the attempt by Massachusetts farmers to stop the courts from seizing farmers' lands for nonpayment of debts? Why did the battle of naseby mark the end of the war? What are the key events of the California gold rush? What did the Americans get from the Greeks? What group was John Jay Alexander Hamilton and James Madison in? What do Greek people speak? What president was responsible for the XYZ affair and the Alien and Sedition acts? Was it true that general Cornwallis fought to the death when he was trapped at Yorktown by the patriots? Importance of Turing machine? How much land was a part of The Louisiana Purchase? What are three facts about the ancient roman senate? How did the French help the Americans win the Revolution War? After the war admiral donitz head of German navy was charged with war crimes because of the u boats was he guilty? Are Kiowa Indians still around today?