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UPSC CDS Physical Geography — practice questions — page 12

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 331–360 of 1,011.

P-waves vibrate in which direction relative to the wave's travel?Read the answer and worked solution →Which type of earthquake wave is the most destructive?Read the answer and worked solution →The shadow zone where neither P nor S-waves are recorded lies between which angles from the epicentre?Read the answer and worked solution →The S-wave shadow zone covers a little over what share of the earth's surface?Read the answer and worked solution →The most common earthquakes, caused by rocks sliding along a fault, are called:Read the answer and worked solution →Earthquakes in the areas of large dams are called:Read the answer and worked solution →The earthquake magnitude scale, expressed in numbers 0 to 10, is the:Read the answer and worked solution →The intensity scale of earthquakes is named after which Italian seismologist?Read the answer and worked solution →The mean thickness of oceanic crust is about:Read the answer and worked solution →The mantle extends from Moho's discontinuity to a depth of about:Read the answer and worked solution →The upper mantle layer whose name means weak is the:Read the answer and worked solution →The core of the earth is mostly made of nickel and iron and is called the:Read the answer and worked solution →The Hawaiian volcanoes are the most famous examples of which type?Read the answer and worked solution →The Deccan Traps of Maharashtra are an example of:Read the answer and worked solution →Catch the earthquake typesRead the answer and worked solution →Pop the earth's layersRead the answer and worked solution →Run the depthsRead the answer and worked solution →Slice the intrusive formsRead the answer and worked solution →P-wave or S-waveRead the answer and worked solution →Sort the volcano typesRead the answer and worked solution →Type the numberRead the answer and worked solution →Earth interior bingoRead the answer and worked solution →Continents cover what share of the earth's surface?Read the answer and worked solution →Who, in 1596, first proposed that the Americas, Europe and Africa were once joined?Read the answer and worked solution →Wegener named the single supercontinent:Read the answer and worked solution →Wegener's mega-ocean, meaning all water, was called:Read the answer and worked solution →Pangaea began to split about how many million years ago?Read the answer and worked solution →Pangaea first broke into Gondwanaland and which northern mass?Read the answer and worked solution →Bullard's 1964 computer fit of the Atlantic margins was tried at which depth line?Read the answer and worked solution →The gold placer deposits of the Ghana coast are believed to come from the:Read the answer and worked solution →

Worked practice questions

P-waves vibrate in which direction relative to the wave's travel?

  1. Circular path
  2. Vertical only
  3. In parallel
  4. Perpendicular
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Correct answer: C. In parallel

1. They stretch and squeeze the material. 2. P-waves vibrate parallel to the wave direction. 3. S-waves vibrate perpendicular to it. _Source: syllabus Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._

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Which type of earthquake wave is the most destructive?

  1. Primary waves
  2. Secondary wave
  3. Body waves
  4. Surface waves
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Correct answer: D. Surface waves

1. They report last on the seismograph. 2. Surface waves are the most damaging. 3. They displace rocks and collapse structures. _Source: syllabus Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._

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The shadow zone where neither P nor S-waves are recorded lies between which angles from the epicentre?

  1. 105 and 145 degrees
  2. 0 and 105 degrees
  3. 145 and 180 degrees
  4. 45 and 90 degrees
Show answer and solution

Correct answer: A. 105 and 145 degrees

1. Within 105 degrees both waves arrive. 2. Between 105 and 145 degrees neither arrives. 3. Beyond 145 degrees only P-waves arrive. _Source: syllabus Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._

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