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Introduction Everything we need - our resources have come from our planet, whether it is food, water, metals or fuels. It is known that if we use up any one of the earths resources then we will be without it forever. In this report I will look at some general principles of how non-renewable and renewable resources are used and the effect this can have on our environment. The resources that are most important to us are coal, metals, oil, gas, petrol and limestone. Without these we will be helpless. Also, these can only be replaced by nature after many million years. We call these non-renewable resources. Many industries rely on these as source of raw materials and will face problems unless new sources or new manufacturing techniques are found. We cannot find any techniques because most of the earths materials are so mixed up, that we can't sort them...

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