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

[Q]: The sporophyte stage is the dominant stage of the lifecycle of a fern.
[A]: Which is the dominant stage of the lifecycle of a fern?


[Q]: Volvox sphere has a distinct front and back end.
[A]: What has a distinct front and back end?


[Q]: Interstitial carbides are produced by the reaction of most transition metals at high temperatures with carbon element.
[A]:
Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element?