The statement that correctly compares the thickness of layers of Earth is that Earth’s lithosphere is thinner than its asthenosphere.
Explanation:
The thickness of the asthenosphere is nearly 660 kilo metres and that of lithosphere thickness is nearly 100 kilo metres. therefore it is very clearly evident that the lithosphere is thinner that asthenosphere.
Not only that, lithosphere is nearly 6 times thinner than that of thickness of asthenosphere. The oceanic crust of Earth is thinner than mantle of the Earth. The outer core of the Earth is thinner than the mantle and the lithosphere is thicker than continental crust of the Earth.
