What is the primary source of Earth's main magnetic field?
Earth Has Another Magnetic Field

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Science, Physics, Geography, Biology, Chemistry
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solar winds
The Earth's atmosphere
Molten metal in the Earth's outer core
The Earth's crust
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What creates the weak magnetic field in the oceans?
The movement of tectonic plates
The flow of salty ionic water through Earth's magnetic field
The reflection of sunlight
The gravitational pull of the moon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When was the oceanic magnetic field first detected?
In 2018
In 1999
In the 1830s
In the 21st century
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the oceanic magnetic field help in understanding climate change?
By predicting solar flares
By mapping ocean currents and heat distribution
By measuring atmospheric pressure
By tracking animal migrations
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What potential extraterrestrial discovery could the study of oceanic magnetic fields lead to?
New planetary atmospheres
Alien life forms
Underground oceans on other planets and moons
New types of minerals
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