Final answer:
Among the options listed, creep is the one process that is almost certainly acting on the landscape around you, as it is a constant and widespread phenomenon affecting slopes due to the force of gravity.
Step-by-step explanation:
The question asks which process is almost certainly acting on the landscape around you, no matter where you go. The processes listed are all geomorphological phenomena that affect landscapes in different ways. Among the options given, creep is the slow, steady, and almost imperceptible movement of soil and rock down a slope primarily under the influence of gravity. It is a process that is almost always at work, impacting slopes and altering landscapes over time. While other processes like landslides, mudflows, rock glaciers, and solifluction also shape the landscape, they tend to be more episodic and localized. Creep occurs in virtually every part of the world and it affects the landscape persistently, which is why it's the correct answer in this context. For example, soil creep can lead to the formation of terraces in grassy slopes, as mentioned in the provided reference information.