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

Solid form do alkali metals take at room temperature.
What form do alkali metals take at room temperature?

Most of the digestion reactions occur in the small intestine.
Where do most of the digestion reactions occur?

Transparent matter transmits light without scattering it.
What type of matter transmits light without scattering it?