Important Question Answers for the Class 9-Social Science Chapter 2- Shaping of the Earth's Surface ***************************** The Big Questions: (These questions are as per new textbook) Q1. What shapes the Earth’s surface? Answer:- The Earth’s surface is shaped by two main kinds of forces: 1. Internal forces originate inside the Earth. They are caused by heat and movements within the Earth. 2. They produce: Earthquakes, Volcanic eruptions, Folding, Faulting. These forces build mountains, valleys, plateaus and ocean basins. 3. External forces work on the Earth’s surface. They include: Weathering, Erosion, Transportation, Deposition 4. Running water, sea waves, glaciers, wind and underground water act as agents of change. 5. They wear down high areas and deposit material in low areas. Q2. What is plate tectonics? What are the effects of plate movement? Answer:- 1. Plate tectonics is the theory that the Earth’s outer layer is divided into large and small tecton...
Comments
Post a Comment