Question

Select all items below that are examples of physical processes.

a. erosion
b. Great Barrier Reef
c. irrigation
d. mountain roads
e. plate tectonics
f. weathering

Answer 1

I believe the answers are erosion, irrigation, plate tectonics, and weathering. They are all natural, physical processes. The others are not processes. The Great Barrier Reef is perhaps a result of a physical process but is not a process itself. The same goes for mountain roads. 

Answer 2

Answer:

a, c, e, f are the answers.