Question

natural susbtance become resources only when their . form has been changed

Answer 1

Answer:

Sometimes, natural substances become resources only when their original form has been changed. ... People use natural resources to make buildings, bridges, roads, machinery and vehicles, which are known as human made resources. Technology is also a human made resource .

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Answer 2

Answer:

Answer: Sometimes, natural substances become resources only when their original form has been changed. ... People use natural resources to make buildings, bridges, roads, machinery and vehicles, which are known as human made resources. Technology is also a human made resource .

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