Consider the following statements-
1. The surface of Earth is modified by a combination of surface processes that sculpt landscapes, and geologic processes that cause tectonic uplift and subsidence.
2. Surface processes comprise the action of water, wind, ice, fire, and living things on the surface of the Earth, along with chemical reactions that form soils and alter material properties, the stability and rate of change of topography under the force of gravity, and other factors, such as human alteration of the landscape.
3. Many of these factors are strongly mediated by climate.
4. The Earth surface and its topography therefore are an intersection of climatic, hydrologic, and biologic action with geologic processes.
Select the correct answer using the codes given below.
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