What forms when earths magnetic field changes direction

I know that the earth's magnetic field is due to molten metal and ions flowing in its core. It has been found that the Earth's magnetic field changes its direction and it has even flipped once! But, in order for this to happen the molten ions flowing in the core should also change its direction.

Explanation:

1. An earthquake because those occur at the ridges of connecting tectonic plates.

2.Both

3. All of the above

4. weathering,erosion, deposition

5.It holds the soul in position and prevents it from being washed or blown away

6.It moves extra rain and ground water to another location

7.It prevents the overflow of water

8.It reduces the amount of water that flows into an area.

9.Flowing water carving through rock over time.

10.Boiling

11.When matter will not change.

12.A magnet that must have an electric current in order to have a magnetic field.

13.Material that allows electricity to flow.

14.Controls the flow of electricity

15.Static electricity

16.Sun tan

I hope my answers are OK

1:b 2:12354 3:b 4:c 5:d 6:b 7:a 8:b 9:c 10:C 11:d 12:c 13:d 14: a 15:c

Explanation:

help is here

Ce clasă ești sa văd daca te pot ajuta

For question 1 the answer is D, Because the higher you are the more PE you have.

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i will gladly help on this one too

Explanation:

im not to sure but i asked my step sister and she said "i dont care" so blame it on her for me not being able to answer your question

question 3 c,6d,7c,10a

Theory

Sea floor spreading

Subduction

Magnetic reversal

Convection current

Explanation:

A system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation

Theory___ - The process by which new oceanic lithosphere (sea floor) forms when magma rises to earth’s surface at mid-ocean ridges and solidifies, as older, existing sea floor moves away from the ridge

Sea floor spreading___ - The process by which one lithosphere plate moves beneath another plate as a result of tectonic forces

__Subduction _ - The process by which earth’s magnetic north pole and magnetic south pole switch positions periodically, a change in the direction in which earth’s magnetic field points.

Magnetic reversal _ - Any movement of matter that results from differences in density may e vertical circular or cyclical.___ Convection current___.

A theory is scientific postulates that explains a particular observation. Theories are products of careful scientific investigations that are made from a single hypothesis. They result from hypothesis that has been well tested, repeated and has been subjected to rigorous experimentation by other scientists.

At the divergent margin, the sea floor is spreading. This idea was brought into light around the mid twentieth century. New tools from the second world war were used to investigate the sea floor.

Records shows that as new magma upwells to the the surface, the older ones are forced back away from the margin. Younger rocks are found close to the margin whereas the old ones are far away from the margin.

Subduction occurs when a denser oceanic plate forces its way downward into the mantle because it is denser. The lighter plate either oceanic or continental rides on top of it. The region where this convergent type of plate motion occurs is called a subduction zone.

The geomagnetic field of the earth is produced as a result of the movement  of metallic minerals in the outer molten core. This produces the earth magnetic field that approximately has its north and south pole close to the geographic one. Sometimes the magnetic direction changes and it reverses. The N-S orientation alternates and this leads to a magnetic reversal.

Convection current is used to transfer energy especially heat based on the differences in density. This is usually between fluids i.e gas and water. The denser materials sinks and the light ones floats. The difference in density is attributed to temperature differences.

Learn more:

Heat transfer from the sun

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