Question

All of the following questions are testable in a scientific exploration about changes to Earths surface EXCEPT-

A: How can the effects of wind and water erosion be measured?
B: How does water erosion and deposition result in construction of a delta?
C: Why the Sun appear to move across the sky?
D: What constructive forces result in changes to Earths surface?

Answer 1

C because you can't control the sun moving across the sky and therefore is not testable in an experiment.