HMS Challenger Expedition Discoveries
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What was the main technique used during the HMS Challenger Expedition to map the ocean floor?

  • Sonar technology
  • Satellite imaging
  • Scuba diving
  • Sounding (correct)
  • Who discovered the concept of nuclear decay in 1905?

  • Jean Bruhnes
  • Jean-François Champollion
  • Rutherford (correct)
  • Lord Kelvin
  • What is the main concept behind determining the age of rocks using half life?

  • Radioactive decay (correct)
  • Magnetic field reversals
  • Temperature fluctuations
  • Water erosion
  • What did Jean Bruhnes discover in volcanic rocks that helped understand magnetic field orientation?

    <p>Small grains of mineral magnetite</p> Signup and view all the answers

    How often do North and South magnetic poles switch based on the findings from Jean Bruhnes?

    <p>Every 200,000 to 1 million years</p> Signup and view all the answers

    What led to a revolution in understanding the interior structure of Earth?

    <p>Seismology stations</p> Signup and view all the answers

    In dating rocks, what does 'half life' represent?

    <p>The time it takes for half the radioactive material to decay</p> Signup and view all the answers

    What technique was used to discover the Mid Atlantic Ridge during the HMS Challenger Expedition?

    <p>Sounding</p> Signup and view all the answers

    What played a crucial role in allowing Earth to cool at different rates than Lord Kelvin's estimates?

    <p>Nuclear decay releasing heat</p> Signup and view all the answers

    What did seismology stations help locate with ease?

    <p>Epicenters of earthquakes</p> Signup and view all the answers

    More Like This

    Unveiling the Secrets
    10 questions

    Unveiling the Secrets

    ProblemFreeBowenite9184 avatar
    ProblemFreeBowenite9184
    HMS Challenger Expedition (1872)
    7 questions
    Darwin's Voyage on the HMS Beagle
    22 questions
    Use Quizgecko on...
    Browser
    Browser