X: Since many chemicals useful for agriculture and medicine derive from rare or endangered plant species, it is likely that many plant species that are now extinct could have provide us with substances that would have been a boon to humanity. Therefore, if we want to ensure that chemicals from plants are available for use in the future, we must make more serious efforts to preserve for all time our natural resource.
Y: But living things are not our "resources" Yours is a selfish approach
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Y: But living things are not our "resources" Yours is a selfish approach
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