What is the main idea of the cartoon?

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

Which physical subsystem includes the air we breathe

The bolded red line on the map above is the a. tropic of capricorn b. tropic of cancer c. prime meridian d. equator