Question

... Means of [the preservation of resources] ...?​

Answer 1

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Conservation and preservation are two such terms. ... Conservation means to reduce the usage of natural resources, to use natural resource more efficiently; in particular, non-renewable resources. Preservation means to protect or save natural resources in the present for the purpose of using them in the future
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Answer 2

Answer:

preservation mean to save or to protect one going to be extinct or endangered

For example . preservation of coal is really needed now