Which of these statements best describes the lithosphere?
A) The lithosphere is the layer in the interior of the Earth that is just below the crust.
B) The lithosphere is composed of the crust and the rigid part of the upper mantle.
C) The lithosphere is a low-density part of the upper mantle.
D) The lithosphere consists solely of the crust.
Question 2
What is the relationship between the four spheres of Earth?
A) The four spheres operate independently from each other.
B) The geosphere and the hydrosphere overlap, but the atmosphere and biosphere operate independently.
C) The four spheres overlap and interact with each other.
D) The biosphere and hydrosphere interact with each other, whereas the geosphere and atmosphere are part of a separate system.
Heart covering and layer of the heart.
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