In some situations, both plates can include continental material such as where the Indo-Australia plate is subducting beneath the Eurasian plate. Volcanic island arcs are created by volcanic activity associated with the subduction of the oceanic plate.n some situations, both plates can include continental material such as where the Indo-Australia plate is subducting beneath the Eurasian plate. Volcanic island arcs are created by volcanic activity associated with the subduction of the oceanic plate.
The Hyksos brought with them knowledge of bronze weapons, chariots and composite bows. But it is not clear that they were required to use this military know-how to take control of upper Egypt.
1 The Hyksos. 2  The Hyksos were a group of mixed Semitic-Asiatics who settled in northern Egypt during the 18th century BC. In about 1630 they seized power, and Hyksos kings ruled Egypt as the 15th dynasty (c. 1630-1521 BC). 1  The name Hyksos was used by the Egyptian historian Manetho (fl. 300 BC), who, according to the Jewish historian Josephus (fl. 1st century AD), translated the word as king-shepherds or captive shepherds..