TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: During the early paleozoic, the amount of carbon dioxide in the atmosphere was much greater compared to today.

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

PROBLEM: The cytoskeleton holds cell organelles in place within the cytoplasm.

SOLUTION: What part of the cell holds cell organelles in place within the cytoplasm?

PROBLEM: Radioisotopes type of isotopes have short half-lives and are given in very low doses.

SOLUTION:
What type of isotopes have short half-lives and are given in very low doses?