How did philosophers of the middle ages study nature?
they accepted things as they appeared.
they tested their ideas for correctness.
they conducted experiments.
they used accurate measurements.

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth