Final answer:
Hydrolysis is the process not impelled by gravity because it is a chemical reaction driven by chemical energy, differing from the geologic processes like slide, creep, solifluction, and fall which are all influenced by gravity.
Step-by-step explanation:
Gravity is the main force impelling movement in all of the following EXCEPT hydrolysis. Options A) slide, B) creep, D) solifluction, and E) fall are all geologic processes that are driven by gravity, which influences the movement of Earth's materials down a slope or incline. On the other hand, hydrolysis is a chemical reaction involving water that is not driven by gravitational force, but rather by chemical energy.
The gravitational force is the weakest of the four basic forces, yet it is the dominant force on a very large scale, such as in astronomical systems. For instance, in scenarios where a person is jumping on a trampoline, a rocket is blasting off from Earth, or a log is rolling down a hill, the gravitational force can be considered strongly dominant. Despite its weakness on a small scale, gravity's influence is significant enough to affect the nature of space and time, a concept further explored in general relativity.