Question

Which statement correctly compares the thicknesses of Earth’s layers?

Answer 1

Answer:

Option D, Earth’s lithosphere is thinner than its asthenosphere

Explanation:

The complete question is as follows -

Which statement correctly compares the thicknesses of Earth’s layers?

A. Earth’s mantle is thinner than its oceanic crust.

B. Earth’s outer core is thicker than its mantle.

C. Earth’s continental crust is thicker than its lithosphere.

D. Earth’s lithosphere is thinner than its asthenosphere.

Solution -

Oceanic crust and Continental crust are not the layers of earth. There are majorly three layers of earth crust – a) Core, b) Mantle and c) crust.

The core is further divided into inner core and outer core. Therefore, comparison between earth’s layers will be possible when the characteristic of three layers (physical, chemical etc.) are compared with each other. Lithosphere and asthenosphere form the part of crust and hence comparison between them can also be considered as comparison between layers of earth

Thus, option D is correct

Answer 2

The Earth's lithosphere is 100km while astehnosphere is 660km so this statement stands true.

Other statements are false like Earth’s mantle is thinner than its oceanic crust as Earth’s mantle is around 3k km while its oceanic crust is just 5km.

Also, Earth’s outer core is thicker than its mantle and Earth’s continental crust is thicker than its lithosphere is false as well.