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What else can I help you with?
What geologic period lasted seven eighths of the earths history?
The Precambrian time
What is the link with the northern lights and a compass?
The formal term for the "northern lights" is "Aurora Borealis". To answer your question, the light show happens when a solar flare hits Earths MAGNETIC field. Without Earths magnetic field, there would be no northern light, nor would compasses be at all useful- THAT is how they are linked. God, I'm such a nerd. Would you believe I'm only 12 years old?
How did rocks get on earth?
they were and aree forced through earths crust in the form of lava.
What is the earth's axis and where is it located?
The Earths axis is an imaginary line that extends from the physical North pole through the Earth to the physical South pole. Physical poles not magnetic poles. Why the axis is important to us is because the Earth is tilted 23 degrees on this axis in relation to the plane of rotation around the Sun, causing us to experience the different season due to the angle of the suns rays impacting the Earth during the year. The Earths axis is an imaginary line that extends from the physical North pole through the Earth to the physical South pole. Physical poles not magnetic poles. Why the axis is important to us is because the Earth is tilted 23 degrees on this axis in relation to the plane of rotation around the Sun, causing us to experience the different season due to the angle of the suns rays impacting the Earth during the year.
How does a metamorphic rock turn into a igneous rock?
If it finds its way dowm into the earths crust through rock cycle and then is melted and mixes together to form molten magma, it could re-erupt to the earths surface and form an extrusive igneous rock or cool and solidify within the earths crust as an intrusive igneous rock.
What is the measurement of the earths time divided into periods?
geologic time scale
What is a measurment of the earths history divided into time periods is?
fossil record geologic time scale
What is a a measurements of the earths history divided into time periods?
fossil record geologic time scale
What is a measurement of the earths history divided into time periods?
fossil record geologic time scale
What is it called when rocks are different because Earths magnetic poles change places?
Magnetic Reversal. Several magnetic reversals have occurred over geologic time.
What changes in cosmic ray intensity at earths surface would you expect during periods in which earths magnetic field passed through a zero phase while undergoing pole reversals?
Cosmic ray intensity at Earth's surface would be greater when Earth's magnetic field passed through a zero phase because magnetic shifting is minimal. Fossil evidence suggests that the periods of no protective magnetic field may have been as important in changing life forms as x-rays have been in the famous heredity studies of fruit flies.
Why is the earths magnetic shiled important?
It protects us from the magnetic/electrical radiation that mainly comes from the sun. High radiation periods coincide with solar storms, et al.
What is the measurement of the earths history divided into time periods?
The Earth's history is divided into geologic time periods, with the largest unit being eons, which are further divided into eras, periods, epochs, and ages. The current eon we are in is the Phanerozoic eon, divided into the Paleozoic, Mesozoic, and Cenozoic eras. Each division represents significant changes in Earth's geological and biological history.
What is a table that divides earths history into time periods?
The table you are referring to is likely the Geologic Time Scale. It divides Earth's history into different time periods based on significant events and changes in the planet's geology, climate, and life forms. These time periods are typically grouped into eons, eras, periods, epochs, and ages.
The possible source of earths magnetic core is?
The molten iron and medals inside the earths core are the reasons for the earths magnetic core.
What is the geologic principle that the same geologic processes that operate today operated in the past to change Earths surface?
uniformitarianism
What are earths alternating magnetic bands called?
Earth's alternating magnetic bands are called magnetic reversals or geomagnetic reversals. These reversals are periods in Earth's history where the magnetic field flips, with the north and south magnetic poles reversing positions. They can be detected in the rock record and provide valuable information about Earth's geological history.
