- Which of the following causes physical erosion?
ARivers
BCarbon Dioxide
COxygen
DForest Fires
- Which of these is still affecting North America geologically, although it ended 10,000 years ago?
AAn Earthquake
BThe Last Glaciation
CA Major Subsidence
DChemical Erosion of the Grand Canyon
- What caused the formation of the Grand Canyon?
AContinental Drift
BSubsidence
CPhysical Erosion
DA Tsunami
ARivers
BCarbon Dioxide
COxygen
DForest Fires
AAn Earthquake
BThe Last Glaciation
CA Major Subsidence
DChemical Erosion of the Grand Canyon
AContinental Drift
BSubsidence
CPhysical Erosion
DA Tsunami