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UPSC CSE Physical Geography — practice questions — page 26

Explore 1,011 free Physical Geography questions in UPSC CSE 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 751–780 of 1,011.

The Big Bang is now accepted to have taken place how many billion years ago?Read the answer and worked solution →Within how many years of the Big Bang did temperature drop to 4,500 K, forming atomic matter?Read the answer and worked solution →The steady state concept, an alternative to the expanding universe, was proposed by:Read the answer and worked solution →A very large cloud of hydrogen gas from which a galaxy starts to form is a:Read the answer and worked solution →Light travels at a speed of about:Read the answer and worked solution →The mean distance between the sun and the earth is about:Read the answer and worked solution →Small rounded bodies that collide and stick together to form planets are called:Read the answer and worked solution →The planets of our solar system formed about how many billion years ago?Read the answer and worked solution →Mercury, Venus, Earth and Mars are called terrestrial planets because they are:Read the answer and worked solution →The four outer planets are called Jovian, which means:Read the answer and worked solution →In August 2006 the International Astronomical Union reclassified which body as a dwarf planet?Read the answer and worked solution →The moon is believed to have formed from a giant impact, the big splat, about how many billion years ago?Read the answer and worked solution →The body that struck the early earth to form the moon was one to three times the size of:Read the answer and worked solution →The process by which gases poured out of the earth's interior to build the atmosphere is called:Read the answer and worked solution →Catch the terrestrial planetsRead the answer and worked solution →Pop the origin theoristsRead the answer and worked solution →Run the discovery datesRead the answer and worked solution →Slice the origin wordsRead the answer and worked solution →Rocky or JovianRead the answer and worked solution →Sort the origin storiesRead the answer and worked solution →Type the numberRead the answer and worked solution →Origin of earth bingoRead the answer and worked solution →An upland such as a mountain that separates two drainage basins is called a:Read the answer and worked solution →The Indus rises in Tibet near:Read the answer and worked solution →The Indus emerges from the mountains at:Read the answer and worked solution →The Satluj, Beas, Ravi, Chenab and Jhelum join together to enter the Indus near:Read the answer and worked solution →Under the Indus Water Treaty of 1960, India can use what share of the water carried by the Indus system?Read the answer and worked solution →The Bhagirathi is joined by the Alaknanda at:Read the answer and worked solution →The Ghaghara, Gandak and Kosi, which flood the northern plains yearly, rise in the:Read the answer and worked solution →Namami Gange was approved as a flagship programme in:Read the answer and worked solution →

Worked practice questions

The Big Bang is now accepted to have taken place how many billion years ago?

  1. 15.6
  2. 12.5
  3. 13.7
  4. 14.6
Show answer and solution

Correct answer: C. 13.7

1. All matter was a tiny ball of infinite density. 2. The bang was 13.7 billion years ago. 3. The first atom formed within three minutes. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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Within how many years of the Big Bang did temperature drop to 4,500 K, forming atomic matter?

  1. 200,000
  2. 500,000
  3. 800,000
  4. 300,000
Show answer and solution

Correct answer: D. 300,000

1. The universe then became transparent. 2. It took 300,000 years. 3. Expansion has continued since. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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The steady state concept, an alternative to the expanding universe, was proposed by:

  1. Hoyle
  2. Hubble
  3. Jeans
  4. Kant
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Correct answer: A. Hoyle

1. It saw the universe as roughly the same at all times. 2. Hoyle proposed the steady state. 3. Evidence now favours expansion. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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