Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Ex Input:
The mitochondria organelles are known as the "power plants" of the cell.

Ex Output:
What organelles are known as the "power plants" of the cell?


Ex Input:
A volcano chain is formed by subduction of oceanic crust beneath a continental or oceanic plate.

Ex Output:
What kind of chain is formed by subduction of oceanic crust beneath a continental or oceanic plate?


Ex Input:
Mesosphere atmospheric layer lies above the highest altitude an airplane can go and below the lowest altitude a spacecraft can orbit.

Ex Output:

What atmospheric layer lies above the highest altitude an airplane can go and below the lowest altitude a spacecraft can orbit?