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1 - Owing to the industrialization, the nineteenth century brought about the greatest expansion of wealth the world had ever known.

2 - Heat makes everything expand, and cold makes everything contract.

3 - One of the huge bonuses of cloning animals is that if you cloned endangered species you could expand their populations immensely.

4 - Private investments play so important a part in the country's long-running economic expansion that no government dares to increase taxation on personal savings.

5 - Fish farming in the world seems to be destined to expand, but it is too early to predict the likely extent of growth in this field.