It was polar due to ulta violet rays.
Michigan used to be a glacier then it melted.
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The global population reached 250 million around the year 1650, and it took approximately 250 years for the population to grow to 500 million by around 1800. Therefore, it took roughly 250 years to add that first 250 million people to Earth's population. This growth rate has significantly increased in subsequent centuries.
Dinosaurs became extinct around 65 million years ago during the Cretaceous-Paleogene extinction event. It is believed that a combination of climate change, asteroid impact, and volcanic activity contributed to their extinction.
I think they lived (the dinosaurs) for approximately 165 million years.
The supercontinent that existed 250 million years ago is called Pangaea, and the ocean that surrounded it is known as Panthalassa.
Between about 220 million and 250 million years.
The global population reached 250 million around the year 1650, and it took approximately 250 years for the population to grow to 500 million by around 1800. Therefore, it took roughly 250 years to add that first 250 million people to Earth's population. This growth rate has significantly increased in subsequent centuries.
about 250 million years
250 million years old
well you never know. No one knows unless you think you'd be alive for 250 million years.... #justsaying..
About 250 million years
The Kaibab Limestone, around 250 million years old.
250 million * 1 million = 250 trillion
dinosaurs lived for about 250 million years ago.
225-250 million Earth years.
roughly 250 million years ago.
Where DID trilobites live? In the ocean, between 530 million and 250 million years ago.
the dinosaurs lived from 250 million years ago to 65 million years ago.