Define environmental degradation​

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?

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!

What conclusion can you draw about the connection between religion and feudalism? a. feudalism worked best in christian societies. b. feudalism could not operate in a society that was religious. c. feudalism was not successful in buddhist societies. d. feudalism could operate in societies with different religions.