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What else can I help you with?
How long do epochs last?
Magnetic epochs last a long period of time, geologically. It is when the earth's magnetic field is the same polarity.
How many times has Earth's magnetic field reversed?
There have been hundreds of magnetic field reversals in Earth's history, with the last one occurring around 780,000 years ago. The frequency of reversals is irregular and can range from tens of thousands to millions of years apart.
How has the position of north America relative to the equator changed over the last 200 million years?
Over the last 200 million years, the position of North America relative to the equator has changed due to the movement of tectonic plates. North America has shifted from being closer to the equator to its current position further north. This movement is part of the ongoing process of plate tectonics shaping the Earth's geography over long periods of time.
How have rainforests changed over100 years?
Rainforests have been significantly reduced over the past 100 years due to deforestation for agriculture, logging, and development. This has led to habitat loss, loss of biodiversity, and increased carbon dioxide emissions, contributing to climate change. Efforts are being made to protect and restore rainforests to combat these negative impacts.
How has the earth changed in the last 225million years?
In the last 225 million years, Earth has undergone significant changes, including the breakup of the supercontinent Pangaea, the movements of tectonic plates leading to the configuration of continents as we see them today, multiple ice ages, changes in sea levels, and the evolution and extinction of numerous species. These changes have shaped Earth's landscapes, climates, and biodiversity.
What is a subdivision of geology?
A subdivision of geology is an area of more specialized knowledge within the broad field of geology. There is a good list of geology's subdivisions (the last of which is Volcanology) here: http://en.wikipedia.org/wiki/Geology
How has life changed for humans in the past 300 years?
how has life changed in the last 300 years
How has communication changed in the last 100 years?
Communication has changed very much in the past 100 years.
How has fashion changed in the last 200 years?
in the last 200 years fashion has changed in many wayse.g. in the 1960's the mini skirt was introduced
How has technology changed over the last 5 years articles?
How has technology changed in the last 5 years articles This doesnt help u now does it :)
How has tourism changed in the last 50 years?
Tourism has changed in the past 50 years by 35% and is still on the increase.
How has transport changed in the last ten years?
Arplanes
how has population changed in the last 200 years?
the crops
Has the definition of art changed in the last 1000 years?
no
How has manila changed in the last 40 years?
more asians!!
How has electricity changed the world in the last 100 years?
alot
How have leisure centres changed in the last 20 years?
its awsum
