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Chapter 4 Review
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Materials taken from the earth and used by people are called ?
Natural resources
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Coal
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Synthetic materials like plastic are made during a process called polymerization. True or false
True
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A
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A
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C
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Polyester, acrylic and burlap are textiles. True or False
True
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Coal takes millions of years to form. Is it renewable or non-renewable ?
Non-renewable
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D
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Which processes release carbon di oxide ?
Respiration and Decomposition
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Choose the alternative source of energy. Natural gas/ coal/ oil/ wind energy
wind energy
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B
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Water can be replaced quickly in a short space of time, therefore it is ? Renewable or non-renewable ?
Renewable
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Animals add nitrogen to the ecosystem when they excrete waste ? True or false
True
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A material that is artificially made is called ?
Synthetic
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B
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