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How old was earth believed to be when the first early relatively stable land masses formed?
The first early relatively stable land masses formed around 3.5-3.8 billion years ago, shortly after Earth's formation around 4.5 billion years ago.
When Millions of years ago most of the land on the earth was covered by?
When millions of years ago, most of the land on Earth was covered by vast oceans and shallow seas. Over time, tectonic plate movements and volcanic activity caused the continents to shift and rise above sea level, creating the diverse landscapes we see today.
How much of the earth was coverd by the by the rainforest 100 hundred years ago?
Around 12% of the Earth's land surface was covered by rainforests 100 years ago. Today, that number has decreased significantly due to deforestation and land conversion for agriculture and development.
What Ancient blank reveal magnetic field blank from long ago?
Ancient pottery reveal magnetic field changes from long ago. By studying the alignment of magnetic minerals in the pottery, researchers can reconstruct past magnetic field intensity and direction, providing insights into the Earth's magnetic field history.
How long ago was a diplidocus living on earth?
Diplodocus lived during the Late Jurassic period, around 154-152 million years ago.
