Surface of the earth example sentences

Over long periods of time, thousands and millions of years, the rocks at or near the surface of the Earth are broken down by various physical, chemical and some biological processes.Sudden movements like earthquakes and volcanoes cause mass destruction over the surface of the earth.This prevents those harmful radiations from reaching the surface of the Earth where they may damage many forms of life.The process of cooling and solidification can happen in the earth's crust or on the surface of the earth.Similarly, when the Lithospheric plates move, the surface of the earth vibrates.The forces which act in the interior of the earth are called as Endogenic forces and the forces that work on the surface of the earth are called as Exogenic forces.The movement of these plates causes changes on the surface of the earth.The thin layer of grainy substance covering the surface of the earth is called soil.Archaeologists also explore and excavate (dig under the surface of the earth) to find tools, weapons, pots, pans, ornaments and coins.पुरातत्त्वविद् औज़ारों, हथियारों, बतर्नों, आभूषणों तथा सिक्कों की प्राप्ति के लिए छान-बीन तथा खुदाई भी करते हैं|This process of erosion and deposition create different landforms on the surface of the earth.