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UPSC CSE Science & Technology — practice questions — page 6

Explore 240 free Science & Technology questions in UPSC CSE Geography. Open each question or exercise to read its content, reference answers and available explanation.

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Science & Technology questions and exercises with answers

Showing questions 151–180 of 240.

Kant's Nebular Hypothesis was revised by the mathematician Laplace in which year?Read the answer and worked solution →Which German philosopher first argued what became the Nebular Hypothesis?Read the answer and worked solution →In 1900, Chamberlain and Moulton said planets formed from material pulled from the sun by a:Read the answer and worked solution →Theories that imagined a companion star coexisting with the sun are called:Read the answer and worked solution →In 1950, Otto Schmidt in Russia and which German scientist revised the nebular hypothesis?Read the answer and worked solution →Planets formed from the disk-shaped cloud through the process of:Read the answer and worked solution →The Big Bang Theory is also called the:Read the answer and worked solution →Who provided evidence in 1920 that the universe is expanding?Read the answer and worked solution →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 →

Worked practice questions

Kant's Nebular Hypothesis was revised by the mathematician Laplace in which year?

  1. 1796
  2. 1900
  3. 1950
  4. 1920
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Correct answer: A. 1796

1. Planets formed from a cloud round a youthful sun. 2. Laplace revised it in 1796. 3. The sun was slowly rotating. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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Which German philosopher first argued what became the Nebular Hypothesis?

  1. Harold Jeffrey
  2. Immanuel Kant
  3. Pierre Laplace
  4. Otto Schmidt
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Correct answer: B. Immanuel Kant

1. It was an early and popular argument. 2. Immanuel Kant proposed it. 3. Laplace later revised it. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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In 1900, Chamberlain and Moulton said planets formed from material pulled from the sun by a:

  1. Wandering star
  2. Passing comet
  3. Rotating nebula
  4. Black hole pull
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Correct answer: A. Wandering star

1. A cigar-shaped extension separated from the sun. 2. A wandering star approached the sun. 3. Jeans and Jeffrey supported this. _Source: syllabus Fundamentals of Physical Geography, Chapter 2, The Origin and Evolution of the Earth._

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