The spinning jenny reduced the number of workers necessary to: O A. plant seeds in a field.
B. pump water from a mine.
C. remove cotton seeds from fibers.
O D. make thread for cloth.

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