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

[Q]: In paragraph 2, they had been untouched for centuries does the phrase à¥ˆ€œfrozen in timeà¥ˆ€ suggest about the figures.
[A]: In paragraph 2, what does the phrase à¥ˆ€œfrozen in timeà¥ˆ€ suggest about the figures?


[Q]: Gabbro is a dark dense rock that can be found in the oceanic crust.
[A]: Gabbro is a dark dense rock that can be found in what?


[Q]: Induced or spontaneous are the two methods in which mutations arise in dna.
[A]:
What are the two methods in which mutations arise in dna?