The is a layer of liquid nickel and iron believed to be responsible for generating the earth's magnetic field.

What causes the cycle of seasons on earth? the tilt of earth’s axis the shape of earth’s orbit the direction of earth’s orbit the distance between earth and the sun

What empire controlled most of the middle east except for a few years between 1516 and 1917, where was the capital of this empire located and what was the geographic extent of this empire?

What conclusion can be drawn about the location of the city of syracuse? it was built on the coastline due to easy access to the red sea. it was built on the coastline due to easy access to the mediterranean sea. it was built inland to protect it from invaders sailing in from the mediterranean sea. it was built inland to protect it from invaders sailing in from the red sea.