Given the task definition and input, reply with output. Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

Which idea or uh like theory states that slow geological processes are still occurring today, and have occurred throughout Earth's history?

Which theory states that slow geological processes are still occurring today, and have occurred throughout Earth's history?