What are the two important aspects of the evolution of landforms?

Answer the following questions in about 150 words.

(i) Running water is by far the most dominating geomorphic agent in shaping the earth’s surface in humid as well as in arid climates. Explain.

(ii) Limestones behave differently in humid and arid climates. Why? What is the dominant and almost exclusive geomorphic process in limestone areas and what are its results?

(iii) How do glaciers accomplish the work of reducing high mountains into low hills and plains?

If landform is a small to medium sized part of the surface of the earth, what is a landscape?

Most of the geomorphic processes are imperceptible. Cite a few processes which can be seen and a few which can’t be seen.

Is complete reduction of relief of a high land mass possible?