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

Ex Input:
During the early paleozoic, the amount of carbon dioxide in the atmosphere was much greater compared to today.

Ex Output:
During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was?

Ex Input:
Injuries can be prevented by getting proper rest and recovery.

Ex Output:
Injuries can be prevented by getting proper what?

Ex Input:
Rhizoids did roots evolve from that plants used for aborption.

Ex Output:
What did roots evolve from that plants used for aborption?