Paragraph on “The Changing Surface of the Earth” complete paragraph for Class 9, Class 10, Class 11 and Class 12

The Changing Surface of the Earth

The Earth’s surface is changing all the time, these changes are caused by wind, water and ice and are so gradual that we fail to notice them. Tiny rivulets flowing down from the top of the mountains join with others and are soon turned into fast flowing rivers. These rivulets and rivers carry away with them, rocks and the upper layers of soil, some even cut into the sides of mountains that they flow through. The rock and soil carried away is then deposited in the deltas and the seas. Rain water seeps into the ground and cuts away under the surface thus forming underground tunnels. On the desert-front strong gusts of wind form sand dunes and constantly blow sand onto rocky surfaces thus gradually cutting them into new shapes. On higher altitudes water seeps into cracks in rocks and freezes. As it freezes, it expands, thus splitting the rocks. Read more about Erosion and Weathering further on in this book.