crust
Convection
What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated liquids at the earth's surface C. iron-rich rocks in the mantle D. temperature differences in the mantle
The lower part of the mantle is called the "lower mantle" or "mesosphere", while the upper part of the mantle is referred to as the "upper mantle" or "asthenosphere".
The hottest part of the mantle is believed to be near the core-mantle boundary, where temperatures can reach up to 4000 degrees Celsius. This intense heat is due to the heat generated by the Earth's core and the slow heat conduction through the solid rock of the mantle.
No, although a large part of the mantle forms the mesosphere, the upper brittle mantle is part of the lithosphere and the ductile layer of the mantle below this is formed of the asthenosphere. The mantle below the asthenosphere (i.e. that part from 700 km down to the core-mantle boundary is the mesosphere).
Convection
Convection
Convection
Convection
I believe that is convection.
A rising convection current.
Convection
Convection.
Actually, heated materials are less dense. When heat is applied to a substance such as liquid, it becomes less dense. It is this less dense and heated material that rises because it weighs less. The part of the mantle that is more dense would be any substance that is cooling and is sinking down.
Heat transfer by the movement of a heated fluid is called _________?
it erupts from the mantle witch is part of the structure of the earth.
Heat transfer by the movement of a heated fluid is called _________?