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

Glaciers deposit their sediment when they melt.
When do glaciers deposit their sediment?

Learned behavior is adaptive because they are flexible, capable of changing if the environment changes.
What kind of behaviors are adaptive because they are flexible, capable of changing if the environment changes?

Grasslands is pedocal soil commonly found.
Where is pedocal soil commonly found?