We know that the poles had changed positions in the past, because of the arrangement of the crystals in the rocks made out of metal. The crystals of the metals act like the needle of the compass when the rock is cooling off and forming, they turn into the direction of the strongest magnetic field on the Earth, which is the North Pole. So by studying the rocks that are made out of metals and see the crystals arrangement and also estimate the age of the rocks, the scientist can precisely tell how has the North Pole been moving throughout time.
I'm pretty sure its R<span>adiometric Dating. Please let me know if I'm wrong but i hope this answer helps you :)</span>
Perspective refers to the framework which is used to explain phenomenon.
The three kind of perspective which geographers used are:
1. Place, scale and space: Geography looks at the world through the lenses of place, space and scale.
2. Geography domain of synthesis: which relates human action to the physical environment.
3. Spatial representation.
How does the Earth create a magnetic field?
The Earth’s magnetic field is created by the rotation of the Earth and Earth's core. It shields the Earth against harmful particles in space. The field is unstable and has changed often in the history of the Earth.
1. gravity keeps the water moving downward or just in general
2. the water has to move across the surface for so long till eventually it just erodes away.
those are the only two i know sorry.
