The balkan countries are bordered by these seas. select all that apply.

adriatic sea
aegean sea
black sea
ionian sea
tyrrhenian sea
white sea

These 4 Adriatic Sea, Aegean Sea, Black Sea, Ionian Sea

Adriatic Sea Aegean Sea Black Sea Ionian Sea

Explanation:

The seas that originated with black areas are those of southeast Europe. And those that have originated from the Balkan mountains and the Balkan mainlands.  Claims to be bordered by the Adriatic sea, on the northwest and the Ionian Sea on the southwest. The Mediterranean sea includes the Aegean and the Ionian sea. It stretches from the Adriatic sea to the black sea. The total landmass has an area of 470,000 km square.

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