EVERYDAY SCIENCE

Detailed explanation-1: -The agents – running water (river), glaciers, wind, sea waves and groundwater, – do the work of erosion, transportation and deposition. Because of these agents, the earth’s surface keeps undergoing changes and new landforms are formed.

Detailed explanation-2: -The evolution of landforms depends on geomorphic agents i.e., running water, groundwater, glaciers, waves and winds. These agents reduce landmasses through erosion and also develop some landforms through deposition. Both erosion and deposition change the surface of the earth.

Detailed explanation-3: -Most landforms change very slowly over many, many years. New mountains have formed as the plates of Earth’s crust slowly collided, and others have been worn away by weathering and erosion. Glaciers may have gradually scraped ice over the land, eventually leaving behind lakes or valleys once the ice receded.

Detailed explanation-4: -Due to changes in climatic conditions and vertical or horizontal movements of land-masses, either the intensity of processes or the processes themselves might change leading to new modifications in the landforms.

Detailed explanation-5: -Weathering is one major process that shapes different landforms. Temperature and precipitation both contribute to weathering. So does pressure on rocks, minerals and soil. These are examples of mechanical weathering.