The correct answer is Deciduous forest.
This terms applies more generally to plants that loose their trees "at maturity", which in practice means before the winter.
This kind of forest is found in places with big seasonal variability, so away from the Poles and from the equator.
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I would say that the main purpose of the European Union is to strengthen the economy of the member states by merging their economies and by introducing one stronger, common economy - a stronger economy for the states means a better comfort of life in those states.
