Generate a question with a factual answer.
Generated: What was one of the first uses of a greenhouse?

Generate a question with a factual answer.
Generated: What was the name of the Channel the Luftwaffe bomb to try to gain air superiority?

Generate a question with a factual answer.
Generated: What type of food animal went extict by the end of the Pleistocene era?

Generate a question with a factual answer.
Generated: Who assisted CAR in avoiding war?