Question

which of these is not a cycle that leads to the formation of structures on the earths surface?
hydrological cycle
gravitational cycle
plate tectonics
rock cycle

Explanation:

The hydrological cycle affects surface - water features like rivers, lakes. Plate tectonics forms mountains, rift valleys etc. The rock cycle is involved in the formation of different rock - based surface structures. There is no such thing as a "gravitational cycle" that leads to surface structure formation in the context of Earth's surface processes.

Answer:

B. Gravitational cycle