Drag the missing word into place

Question

Three layers of life, I'll make it clear:

The one we live on? That's the

The one with the water is the hydrosphere.

lithosphere

mesosphere

stratosphere

Answer 1

The correct word to drag into place is lithosphere.

So the completed sentence would read:

"Three layers of life, I'll make it clear:

The one we live on? That's the lithosphere.

The one with the water is the hydrosphere."