Because at the Earth's surface plate tectonics indicates the mantle is convecting very slowly. To convect the mantle must have a liquid (fluid) nature over long time periods.
Inner core: 2450 km thick Outer core: 2300 km thick Lower mantle: 2500 km thick Upper Mantle: 400 km thick continental crust: 30-70 km thick Oceanic Crust: 6 km thick
Very good question. Many people have been wondering this, actually. How thick is the Earth's mantle? Well, I did some research and found out that the Earth's mantle is about 1800 miles thick, or 2900 kilometers thick. It contains about 80 percent of the Earth's mass. Wow!
mantle
yes it is 2893 kilometers thick
The thickness of the Earth's mantle is about 2900 km and it's upper boundary is about 100km deep. There is a really cool cutaway drawing available by using the Wikipedia link.
The mantle is often described as a very thick syrupy liquid because it behaves like a solid over short periods of time but can flow very slowly over long periods of time. This unique property is known as plasticity. The mantle's ability to flow allows for the movement of tectonic plates on the Earth's surface.
The mantle
The outer core of the mantle can be liquid.
The answer is the outer core.
It is Mantle or you can say Magma.
The mantle consists of molten rock. Therefore, it made up of a very thick, hot liquid referred to as magma.
None! Unless you mean the core. The outer core is liquid.
The asthenosphere, located in the upper part of the mantle, can flow like a thick liquid due to high temperatures and pressures that allow for the movement of rock over long periods of time.
how the thin outer crust is floating on the thick liquid mantle, causing the crust to move and form a divergent plate boundary
"of the mantle" is the prepositional phrase.
The core of the earth is surrounded by the mantle.The earth's core is called the inner core. Just outside that is the outer core, and it is liquid. Outside the liquid outer core is the mantle.
The asthenosphere is the part of the mantle that can flow like a thick liquid. It is a semi-fluid layer located beneath the lithosphere, where convection currents occur, causing tectonic plate movement.