1) How many ice ages has the earth had in the last 2.5 billion years? a) a) 3 b) b) 5 2) Which of these is NOT a cause of an ice age? a) a) south america and north america collided causing the gulf stream b) b) the earth tilted away from the sun c) c) the orbit of the sun became longer and earth cooled d) d) the action of humans 3) What covered the UK during the ice age? a) a) grasslands and pasture b) b) ice sheets and glaciers c) c) frost 4) Which of these was NOT found in ice age Britain? a) mammoths b) Neanderthals c) cave bears d) dinosaurs 5) How long ago did the ice age end? a) 500 years ago b) 1000 years ago c) 4500 years ago d) 12000 years ago

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