Yukon. Brainly wants me to write at least 20 characters so here’s an extra sentence.
Five seas r : Caspian Sea-inland
Aral Sea-inland
Black Sea
Arabian Sea
South China Sea..
three oceans r:Atlantic ocean
pacific ocean
Indian ocean
Answer:
I believe they are called hydrologists.
Explanation:
Based of prion knowledge I’d probably say the last one (sorry if it’s not correct)