SOLAR SYSTEM

Detailed explanation-1: -This region of the mantle is known as the low-velocity zone because seismic waves are slowed within rock that is near its melting point, and of course it is also known as the asthenosphere.

Detailed explanation-2: -Iron is still in an environment of temperature 2000o C, a temperature higher than its melting point. So the iron is in a liquid state. This is the condition in what’s called the “outer core” (from a depth of 2900 km below the surface down to a depth of about 4000 km).

Detailed explanation-3: -The molten layer is located about 100 miles from the surface and is part of the asthenosphere, which sits under the Earth’s tectonic plates in the upper mantle. The asthenosphere is important for plate tectonics because it forms a relatively soft boundary that lets tectonic plates move through the mantle.

Detailed explanation-4: -The asthenosphere is an important layer, or zone, within the earth. Temperature increases with depth in the earth and eventually the rock material of the mantle becomes partially molten. This partially molten layer is called the asthenosphere.

Detailed explanation-5: -The core is the centre of the earth and is made up of two parts: the liquid outer core and solid inner core. The outer core is made of nickel, iron and molten rock. Temperatures here can reach up to 50, 000 C.

Detailed explanation-6: -The temperature of the rocks that constitute the asthenosphere is below their melting point. As temperature or pressure on increases, the material tends to deform and flow.