Based on the clue 'about 23 of this rivers 23 million square mile tro...', what is the answer?

What is associated with: about 22000 square miles this country includes the regions of dalmatia istria? Based on the clue 'about 23 of the boundary between mexico the us is...', what is the answer? Based on the clue 'about 23 of the water in the nile comes from this ...', what is the answer? Based on the clue 'about 23 of the weight of bone tissue consists of ...', what is the answer? What is associated with: about 230 years bs before shakespeare chaucer wrote an 8000 line poem about this title homeric… Based on the clue 'about 25 miles north of miami it was named for a s...', what is the answer? Based on the clue 'about 25 of the more than 250 species of these are...', what is the answer? What is associated with: about 25 people were arrested under this group of 4 acts passed in 1798 all were repealed or e…