Explanation:

Statement 1: It causes plate movements (tectonics), results in volcanic eruptions and is therefore a significant factor in the evolution of landforms on earth.

Statement 2: If Vegetation cover is high, it protects the surface from rain splash as root mass is sufficient to stabilize the materials on the slope.

Even surface runoff become less effective in carving out landforms in areas where there is dense vegetation, since there is little scope for soil erosion.

Statement 3: Self-explanatory. For e.g. all the plains that you are the result of active erosion and deposition by water.

Statement 4: When water freezes to ice, its volume increases. Under specific circumstances, this expansion is able to displace or fracture rocks where water exist in its pores. Repeated frost action thus weathers (breaks) the rocks.

• In some mountains, there are permanently frozen rivers of ice. They are called glaciers. Glaciers move at a very slow rate. When they do, they erode the soil beneath them.

• Also, formation of glaciers and their retreat affects the soil profile of the region and thus the landforms.