Historical Perspectives on Earth's Age

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Questions and Answers

Which scientist proposed that the Earth began on the 21st of September 4004BC?

  • James Hutton
  • Lord Kelvin
  • James Ussher (correct)
  • Charles Lyell

Which scientific concept emphasizes that the earth’s present processes are key to understanding its past development?

  • Uniformitarianism (correct)
  • Molten planet theory
  • Radioactive decay
  • Biblical generations

Who proposed that the Earth is 20-40 million years old based on estimates of size and shape leading to cooling time?

  • Ernest Rutherford
  • Marie Sklodowska Curie
  • James Hutton
  • William Thomson Lord Kelvin (correct)

Based on the text, which scientist's research led to the conclusion that the oldest rocks on Earth are in the centre of the largest continents?

<p>O’Neil et al. 2008 (C)</p> Signup and view all the answers

What major event marked the beginning of the universe, according to Edward Hubble?

<p>The Big Bang (D)</p> Signup and view all the answers

Which process led to the formation of a very high proportion of existing atoms during the first 30 minutes of the universe?

<p>Nuclear fusion (A)</p> Signup and view all the answers

What plays a crucial role in the chemistry of life, as mentioned in the text?

<p>Oxygen and hydrogen (A)</p> Signup and view all the answers

What was responsible for causing axis tilt, rate of rotation, and direction of spin on Earth, according to the text?

<p>Meteorite collisions (C)</p> Signup and view all the answers

What did Clair Patterson use to perform absolute dating of radioactive matter?

<p>Magma ocean (A)</p> Signup and view all the answers

What process led to the formation of Earth's core, as mentioned in the text?

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What factors are required for building DNA?

<p>Energy, amino acids, catalysts, chemical concentration, protection from radiation, and excess heat (C)</p> Signup and view all the answers

Where did the Impact theory suggest the building blocks of life arrived from?

<p>Meteorites (B)</p> Signup and view all the answers

What is the age of the oldest existing rocks in the Universe?

<p>14 billion years (A)</p> Signup and view all the answers

What emerged during the Cambrian period?

<p>Explosion of the fossil record (C)</p> Signup and view all the answers

What is thought to have covered the Earth completely twice in its history?

<p>Ice (B)</p> Signup and view all the answers

What type of environment did the early Pre-Cambrian fossils indicate?

<p>Anaerobic (A)</p> Signup and view all the answers

What is the oldest type of rock in Scotland?

<p>Gneiss (D)</p> Signup and view all the answers

What process created the Pre-Cambrian rocks of Scotland?

<p>Caledonian Orogeny (D)</p> Signup and view all the answers

What are the oldest rocks in Scotland made up of?

<p>Archean and lower Proterozoic gneiss (A)</p> Signup and view all the answers

Where did the Urey Miller Experiment create a small-scale early earth atmosphere?

<p>Laboratory (C)</p> Signup and view all the answers

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