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

[EX Q]: Landslides moving loose rocks downhill process is the best example of a sudden change to earth’s surface.
[EX A]: Which process is the best example of a sudden change to Earth’s surface?

[EX Q]: All of the populations that live in the same area make up a(n) community, which includes populations of different organisms.
[EX A]: All of the populations that live in the same area make up what type of group, which includes populations of different organisms?

[EX Q]: Polysaccharides are polymers composed of many sugar building blocks called.
[EX A]:
What are polymers composed of many sugar building blocks called?