instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
A fewer predators is most likely to cause the number of rabbits living in an area to increase.
answer:
Which factor is most likely to cause the number of rabbits living in an area to increase?

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

question:
Polymers, ceramics, adhesives, coatings, and liquid crystals are examples of materials recently discovered or developed by chemists type of scientists.
answer:
Polymers, ceramics, adhesives, coatings, and liquid crystals are examples of materials recently discovered or developed by what type of scientists?