Why is the asthenosphere liquid?

Rocks in the asthenosphere are “plastic”, meaning that they can flow in response to deformation. Even though it can flow, the asthenosphere is still made of solid (not liquid) rock; you can think of it kind of like Silly Putty. Below that is the mantle, which of made up of denser rocks than the crust.Click to see full answer. Also know, why does the asthenosphere exist?Lying beneath the lithosphere is the asthenosphere, a layer of rock that is slowly deforming and gradually flowing like taffy. Heat in Earth’s core produced by the radioactive decay of elements escapes and warms mantle rocks above, making them softer and less viscous, and also causes them to convect. what is the asthenosphere composed of? This property tells us that the asthenosphere is composed of partially molten rock slushlike material consisting of solid particles with liquid occupying spaces in between. Although the asthenosphere represents no more than six percent of the mantle, the mobility of this layer allows the overlaying lithosphere to move. Similarly one may ask, what is the asthenosphere and why is it important? The asthenosphere is a layer of great geological importance to the Earth’s mantle. It is responsible to create new earth crust, which means that new lands will be produced. This occurs in ocean ridges, where convection pushes the asthenosphere to the surface.What is an interesting fact about the asthenosphere?Fun facts: The word ‘asthenosphere’ is from the Greek asthenes meaning ‘weak. ‘ The layer of the Earth just above the outer core; in combination with the upper mantle, this is the largest layer (about 2/3 of Earth’s mass). Hot, dense rock; becomes more solid closer to core.