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

Q: A diploid cell is a cell with two chromosomes.

A: What kind of cell is a cell with two chromosomes?
****
Q: Poles parts of the planet does solar energy have difficulty reaching.

A: What parts of the planet does solar energy have difficulty reaching?
****
Q: Bacteria and archaea are examples of prokaryotes.

A:
What are bacteria and archaea examples of?
****