why do they call it the sea of galilee
Sea of Galilee In the New Testament the term "sea of Galilee" (Greek: θάλασσαν τῆς Γαλιλαίας, thalassan tēs Galilaias) is used in the gospel of Matthew 4:18; 15:29, the gospel of Mark 1:16; 7:31, and in the gospel of John 6:1 as "the sea of Galilee, which is the sea of Tiberias" (θαλάσσης τῆς Γαλιλαίας τῆς Τιβεριάδος, thalassēs tēs Galilaias tēs Tiberiados), the late 1st century CE name.[10] Sea of Tiberias is also the name mentioned in Roman texts and in the Jerusalem Talmud, and was adopted into Arabic as  Buhairet Tabariyya (help·info) (بحيرة طبريا), "Lake Tiberias".
Dead Sea The Dead Sea (Hebrew: יָם הַמֶּלַח‬  Yam ha-Melah lit. Sea of Salt; Arabic: البحر الميت‎  Al-Bahr al-Mayyit[5]) is a salt lake bordered by Jordan to the east and Israel and Palestine to the west. Its surface and shores are 430.5 metres (1,412 ft) below sea level,[4][6] Earth's lowest elevation on land. The Dead Sea is 304 m (997 ft) deep, the deepest hypersaline lake in the world. With a salinity of 342 g/kg, or 34.2%, (in 2011), it is 9.6 times as salty as the ocean and one of the world's saltiest bodies of water.[7] This salinity makes for a harsh environment in which plants and animals cannot flourish, hence its name. The Dead Sea is 50 kilometres (31 mi) long and 15 kilometres (9 mi) wide at its widest point.[1] It lies in the Jordan Rift Valley, and its main tributary is the Jordan River.