What are two things that are true about Christianity?

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

Due to serious dogmatic differences between the orthodox church and the western christan churches, the orthodox church is not in communion with the roman catholic and protestant communities true or false

Identify a reason for the decline of the roman empire.