One principle of sustainability that urges caution in doing anything that may have unexpected environmental consequences.

The correct answer that is being described by the statement above is precautionary principle. It is because this principle is used in means of prohibiting food or genetically modified organisms that may be subjected to importation and that the effects are likely to be disputed or resisted.

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.