Please help I’ll give brainliest

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

What post war changes took place in north america

Which statement about congress is accurate? it contains only the house of representatives. the senate’s membership is based on a state’s population. it is bicameral, according to the constitution. membership in both houses is based on equal representation.