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Answers
Answer:
1)Sudden shaking of surface of the is called Earthquake . This movement occurs along a surface between the two blocks called a fault. This movement releases energy and generates seismic waves
2) An earthquake is caused by a sudden slip on a fault.
3) - fires involving solid materials such as wood, paper or textiles. Class B - fires involving flammable liquids such as petrol, diesel or oils. Class C - fires involving gases. Class D - fires involving metals.
4)landslide, also called landslip, the movement downslope of a mass of rock, debris, earth, or soil (soil being a mixture of earth and debris). Landslides occur when gravitational and other types of shear stresses within a slope exceed the shear strength (resistance to shearing) of the materials that form the slope.
5)Landslides can overwhelm, and even pollute streams and waterbodies with excess sediment.
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