Why is it important that we have a rigid lithosphere overlying a weak asthenosphere?
A)If we did not have the rigid lithosphere and weak asthenosphere,the earth would not have plate tectonics and would be covered entirely by water.
B)If we did not have the rigid lithosphere and weak asthenosphere,the atmosphere would be very different with either too much ammonia and methane or too little oxygen and water.
C)If we did not have the rigid lithosphere and weak asthenosphere,we would be bombarded by cosmic rays that would strip away our atmosphere.
D)If we did not have the rigid lithosphere and weak asthenosphere,we would be bombarded by meteorites and we would not be able to hold the moon in orbit.

Question

Quizplus · Accepted Answer

The rigid lithosphere and weak asthenosphere are crucial for the process of plate tectonics. Without that, there would be no movement of Earth's crustal plates, resulting in a lack of formation of new landmasses and volcanic activity. This would ultimately result in an Earth covered entirely by water, making life as we know it impossible.

Why Is It Important That We Have a Rigid Lithosphere