What does the author list and describe in the passage?
A、the positive effects of industrialization
B、the tourism industry around the Grand Canyon
C、the history of climate change
D、the ways that moving water can shape and change the land 无解析
A、the positive effects of industrialization
B、the tourism industry around the Grand Canyon
C、the history of climate change
D、the ways that moving water can shape and change the land 无解析