Which of the following major discoveries was not made near or after world war ii? the extensive ranges of mountain chains on the sea floor the absence of rocks older than 200 million years on the sea floor deep focus earthquakes that occur in some regions of the earth rift valleys in africa

Te correct answer is rift valleys in Africa

Explanation:  The Rift Valley is known as the set of tectonic faults that cross eastern Africa from Lake Malawi to the Horn of Africa, where it creates a fork between Eritrea, Djibouti and Somalia, the Afar Triangle.

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.

because the early people found out about it.