How is the landscape worn away?

In geology, denudation is the long-term sum of processes that cause the wearing away of the Earth's surface

Denudation incorporates the mechanical, biological and chemical processes of erosion, weathering and mass wasting. Denudation can involve the removal of both solid particles and dissolved material. These include sub-processes of cryofracture, insolation weathering, slaking, salt weathering, bioturbation and anthropogenicimpacts.[1]

Factors affecting denudation include:

• Surface topography
• Geology
• Climate (most directly in chemical weathering)
• Tectonic activity
• BiOSphere
• Anthropogenic activity