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Earth magnetic field results from movement in the -----
Earth magnetic field results from movement in the outer core. Due to the huge heat pressure of the inner core, this results the outer core to melt. Outer core's movement is the reason of the existence of Earth's magnetic field.
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In the rocky communities of the Americal Pacific Coast which is an important predator. Hope this helps :)
Answer: was known as early as Pythagoras (580-500 B.C.E.)
Explanation: The "realization" that the earth was spherical has been mentioned early in by Greek philosophers.
Even Armenian scientist Anania Shirakatsi (610-685 AD) subscribed to the idea of a spherical Earth.
That was thanks to scientists, philosophers and mathematicians who, as early as around 600 B.C., made observations that Earth was round. Using calculations based on the sun’s rise and fall, shadows and other physical properties of the planet, Greek scholars like Pythagoras and Aristotle determined that the planet is actually a sphere.
I would say for this one true, because they were not just like a country, they had different parts like for example California, Nevada, New York, or something like that as well.
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