Man made resources are significant as there are many things that cannot be provided by nature and we can say this, that man made resources has made our life easier . as we can take example of car , it help us to travel, often we cannot go long distances by walking.there are many other things that has also value in man made resources. 

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There r many resources which are not provided by nature, so man has to make those resousce so in this circumstances man made resource are significant.