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Questions and Answers
Earth's magnetic field is primarily caused by:
Earth's magnetic field is primarily caused by:
- Magnetized minerals within the rocks of oceanic and continental crust
- Currents passing through wires in Earth's interior
- Primordial magnetism that remains some 4.6 billion years after the planet was formed
- The flow of an electrically conducting fluid in Earth's outer core (correct)
What is the age of the primordial magnetism that contributes to Earth's magnetic field?
What is the age of the primordial magnetism that contributes to Earth's magnetic field?
- 1 billion years
- 10,000 years
- 4.6 billion years (correct)
- 100 million years
Which of the following is not a cause of Earth's magnetic field?
Which of the following is not a cause of Earth's magnetic field?
- Magnetized minerals within the rocks of oceanic and continental crust
- Currents passing through wires in Earth's interior (correct)
- Primordial magnetism that remains some 4.6 billion years after the planet was formed
- The flow of an electrically conducting fluid in Earth's outer core
According to Hess' 'geopoetry', which of the following does it NOT account for?
According to Hess' 'geopoetry', which of the following does it NOT account for?
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What is NOT considered in Hess' 'geopoetry'?
What is NOT considered in Hess' 'geopoetry'?
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Which of the following is NOT accounted for in Hess' 'geopoetry'?
Which of the following is NOT accounted for in Hess' 'geopoetry'?
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