Question

physical structure of the earth
its important to note that the earths structure but is always changing. for example, the lithos tectonic plates are always moving which cause earthquakes, mountain building, and volcanoe
image of earths internal structure diagram with labels: crust 0-100 km thick, asthenosphere, mantle, outer core, inner core, lithosphere (crust and uppermost solid mantle), liquid, solid, not to scale, to scale, 2900 km, 5100 km, 6378 km
what is the earths outermost solid layer?
options: upper mantle, lithosphere, inner core

Explanation:

To determine the Earth's outermost solid layer, we refer to the diagram and the provided description. The lithosphere is defined as the crust and the uppermost solid mantle, making it the outermost solid layer. The upper mantle is part of the mantle but not the outermost solid layer as a distinct layer here, and the inner core is deep within the Earth, not the outermost.

Answer:

B. lithosphere