What was the benefit of the interchangeable parts?

Which of the four varnas are soldiers placed in? a. sudra b. brahmin c. vaishya d. kshatriya

Click on this article and use it to answer the questions below.article on china and controlling the media 1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the mediacensorship of the mediaallowing people to create their own social mediadeleting people's social media posts without their permission

Ialready know the answer to this question but i wanted to ask you guys to see if you know. who started the okinawan karate style ryukyu kempo? when year was it found?