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UPSC CDS Physical Geography — practice questions — page 15

Explore 1,011 free Physical Geography questions in UPSC CDS Geography. Open each question or exercise to read its content, reference answers and available explanation.

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Physical Geography questions and exercises with answers

Showing questions 421–450 of 1,011.

Solution, carbonation, hydration and oxidation are which type of weathering?Read the answer and worked solution →Most physical weathering is caused by thermal expansion and:Read the answer and worked solution →The flaking off of curved sheets from rocks, leaving rounded surfaces, is:Read the answer and worked solution →Weathering that concentrates valuable ores by leaching away other material is called:Read the answer and worked solution →Mass movements carry rock debris down slopes under the direct influence of:Read the answer and worked solution →Slipping of rock debris with a backward rotation is called:Read the answer and worked solution →Debris avalanches and landslides are most frequent in which Indian range?Read the answer and worked solution →Erosion and transportation are controlled by which form of energy?Read the answer and worked solution →Karst topography develops only where rocks are permeable and:Read the answer and worked solution →During deposition, which materials settle out first?Read the answer and worked solution →Soil formation is also called:Read the answer and worked solution →How many basic factors control soil formation?Read the answer and worked solution →Removal of silica from soil in wet equatorial climates is called:Read the answer and worked solution →Calcium carbonate nodules formed in tropical soils are called:Read the answer and worked solution →Catch the exogenic processesRead the answer and worked solution →Pop the chemical weatheringRead the answer and worked solution →Run the soil numbersRead the answer and worked solution →Slice the mass movementsRead the answer and worked solution →Endogenic or exogenicRead the answer and worked solution →Sort the weathering typesRead the answer and worked solution →Type the numberRead the answer and worked solution →Geomorphic bingoRead the answer and worked solution →A lowland of faint relief left by stream erosion, dotted with monadnocks, is a:Read the answer and worked solution →Which deep valley is nearly equal in width at its top and bottom, with very steep sides?Read the answer and worked solution →Canyons commonly form in which kind of rock?Read the answer and worked solution →Large deep holes at the base of waterfalls are called:Read the answer and worked solution →River terraces at the same height on both sides of a river are called:Read the answer and worked solution →The cone-shaped deposit where a mountain stream breaks onto a gentle plain is an:Read the answer and worked solution →Unlike alluvial fan deposits, the deposits making up deltas are:Read the answer and worked solution →Low linear ridges of coarse deposits along the banks of large rivers are:Read the answer and worked solution →

Worked practice questions

Solution, carbonation, hydration and oxidation are which type of weathering?

  1. Biological
  2. Mechanical
  3. Chemical
  4. Physical
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Correct answer: C. Chemical

1. Water, air and heat speed the reactions. 2. They are chemical weathering processes. 3. Physical weathering needs applied forces. _Source: syllabus Fundamentals of Physical Geography, Chapter 6, Geomorphic Processes._

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Most physical weathering is caused by thermal expansion and:

  1. Chemical decay
  2. Plant roots
  3. Carbonation
  4. Pressure release
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Correct answer: D. Pressure release

1. Repeated expansion and contraction fatigue rocks. 2. Pressure release is the other main cause. 3. The processes are small and slow. _Source: syllabus Fundamentals of Physical Geography, Chapter 6, Geomorphic Processes._

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The flaking off of curved sheets from rocks, leaving rounded surfaces, is:

  1. Exfoliation
  2. Carbonation
  3. Hydration
  4. Oxidation
Show answer and solution

Correct answer: A. Exfoliation

1. It is a result, not a process. 2. This is exfoliation. 3. Exfoliation domes come from unloading. _Source: syllabus Fundamentals of Physical Geography, Chapter 6, Geomorphic Processes._

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