barbaarm000 barbaarm000

03-06-2019
Physics

contestada

How do scientists know the Earth’s magnetic field has reversed itself many times in the past?

Respuesta :

queenxx27 queenxx27

03-06-2019

Answer:

Changing frequency over time

Explanation:

Changing frequency over time. The rate of reversals in the Earth's magnetic field hasvaried widely over time. 72 million years ago (Ma), the field reversed 5 times in a million years.

Answer Link

Otras preguntas

Research and discuss the different stages of stress according to Hans Selye’s General Adaptation Syndrome. What could be some negative outcomes of stress at eac

How do I solve this?

Which question allows the writer to approach the topic from different viewpoint? How so? Then what? So what? What for?

show me the standard form of 3 + 8y2

Why are most of Earth's deserts located in the subtropical zone? A. These regions receive less sunlight than the equatorial region. B. These regions ar

Lo mejor es no ____ tu informacion personal

Which of the following statements are true of the graph of the function f(x) = (x+5)(x-3) _ the graph has a relative maximum _ the graph has a relative minimum

When British ruled over India, they improved the communication and railroad systems there. True Or False

These questions right here

Empathy means what in health field