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

[Q]: Hybridization model model helps explain molecules with double or triple bonds.
[A]: Which model helps explain molecules with double or triple bonds?

[Q]: Like mitochondria, plastids contain their own dna.
[A]: Like mitochondria, plastids contain their own what?

[Q]: The extensive property is a property that depends on the amount of matter in a sample.
[A]:
What property is a property that depends on the amount of matter in a sample?