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What is a area of rigid blocks of earth's crust upper mantle?
plates
What is the name for rigid blocks of Earth's crust and upper mantle?
Tectonic plates.
What is the least rigid part of the mantle?
The upper mantle is less rigid because the pressure is lower
What is the rigid layer that includes the upper part of the mantle and the crust of the Earth?
The lithosphere is composed of the crust and uppermost mantle. Combined, they form the lithospheric plates.
What is a rigid layer made up of the uppermost part of the mantle and crust?
The rigid layer that is the upper mantle and crust is called the lithosphere.
A rigid block of crust and upper mantle-rock is known as what?
Lithosphere
What is the rigid zone above the asthenosphere that includes the crust and upper mantle?
The lithosphere
The crust and uppermost mantle make up the rigid outer layer of Earth what is it called?
Together the crust and upper mantle make the lithosphere.
What is the rigid layer of the earth the crust and a part of the upper mantle?
the Lithosphere or Lithospheric Plates
What theory states that earth's crust and rigid upper mantle upper mantle move in different directions and at different rates over earth's surface?
Plate tectonics
What part of the mantle is the asthenosphere found?
The asthenosphere lies in, and is the upper ductile part of, the mantle. It is the layer directly underneath the lithosphere; the layer composed of the crust and uppermost rigid mantle.
Why is the lower mantle more rigid and dense then the asthenosphere in the upper mantle?
The lower mantle is older and cooler than the upper mantle. Thank you for reading this I'm comment if you like one direction(: hehe
