Which volcanoes are located along converging plate boundary, from the ones listed below?
-arenal
-el chichon
-el misti
-falcon
-katmai
-mauna
-mount rainer
-pinatubo
-rabaul
-tambora
-unzen
-villarrica?

There are more than 550 active volcanoes in the world, almost all of which are located at convergent tectonic plate boundaries. From the list, all except mauna are located along the converging plate boundary. These are the volcanoes:

-Arenal-El Chichon-El Misti-Falcon-Katmai-mount Rainer-Pinatubo-Rabaul-tambora-unzen-villarrica

May consider a group  g=({0,1},+)g=({0,1},+)where  ++  will work as the xor operator like we work in boolean algebra. note here, that ‘00’ and ‘11’ are not the usual 0 and 1 that we work with everyday. the elements are  called  ‘00’ and ‘11’ and  may not mean  zero (nothing) and one (single). ‘00’ is the identity for the given binary operator +, meaning that any element operated with ‘00’ gets us that element itself.  for a set  ss  in  g′g′  having more elements than just  {0,1}{0,1}  the values for  a+b∈sa+b∈s, such that  a∈s,b∈sa∈s,b∈s, have to be first defined, only then can you determine the value of  1+11+1. the answer could possibly have been  22  if oanswer is25,000