Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor. Eventually, the crust cracks.
Answer and Explanation:
1. In order to determine the direction whether west is toward left or right, let us suppose that we are facing towards the south direction.
Thus the apparent motion's direction at east is leftwards and hence west is rightwards.
2. The vast majority of the stars seem to move in a similar way at both the north and south poles but not all the stars.
Since stars in northern half of the globe seem to turn clockwise however some are not seen because of going under the skyline and which is valid for southern side of the equator too.
<span>Guyots are seamounts that have built above sea level. Erosion by waves destroyed the top of the seamount resulting in a flattened shape. Due to the movement of the ocean floor away from oceanic ridges, the sea floor gradually sinks and the flattened guyots are submerged to become undersea flat-topped peaks.</span>
Greater, earths core is very hot and pressured.
The more you go down, the greater pressure and heat there is.
