41). Consider the following statements: 1. P-waves are the first seismic waves to reach a place 2. S-waves travel only through liquids 3. Arrival time of P and S waves is used to locate the epicentre 4. Richter scale is a logarithmic scale Which of the statements given above are correct?
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42). Match the following: A. River 1. Dunes 2. Glacier 2. Spits C. Waves 3. Terraces D. Wind 4. Moraines Below options are given in A B C D order
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43). The problem of leaching of the soil is more pronounced in the areas where the rainfall is :
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44). Moon shaped sand-dunes, formed by wind action are called :
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45). When almost all the elevated portions are worn down by river erosion reducing an area to almost a plain region, it is termed as :
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46). Which of the following influence the erosion of soil by water? 1. Slope of the land 2. Management practice terracing 3. Soil salinity
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47). Which of the following is the highest plateau I the world?
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48). Which mountain ranges separate North European Plains from Great Siberian Plains?
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49). Which is the proper order of seismic waves as they are received at seismograph station?
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50). Which European country has over 200 volcanoes, many of them still active?
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