very hot and humid
Earth has existed a little more than 4.5 billion years. 160,000 million years ago was the Jurassic period. The climate was warm and humid, leading to lush and green foliage. It was an ecologically diverse time, and mammals were evolving rapidly. There were dinosaurs.
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
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.
The answer is 63.2 million years. Since the Tertiary Period began 65 million years ago and then stoped 1.8 million years ago you have to subtract the 1.8 million from 65 million to get the actual lenght of time.
The five mass extinctions that occurred in Earth's history took place during the Ordovician period (about 445 million years ago), the Devonian period (about 375 million years ago), the Permian period (about 251 million years ago), the Triassic period (about 200 million years ago), and the Cretaceous period (about 66 million years ago).
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Earth has existed a little more than 4.5 billion years. 160,000 million years ago was the Jurassic period. The climate was warm and humid, leading to lush and green foliage. It was an ecologically diverse time, and mammals were evolving rapidly. There were dinosaurs.
due to climate changes :)
60 million years ago Canada was a mass of ice.
Three million years ago would place us in the Pliocene epoch, which began around 5.3 million years ago and lasted until about 2.6 million years ago. If we consider today's date as October 2023, then three million years ago would be around October 1,002,023 BCE. This period was characterized by significant climate changes and the evolution of early hominins.
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
Thousands of year ago Antarctica was much like it is now: very cold and covered in ice. You would have to go back 160 million years to find it was warm.
Obviously - Climate change
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.
16 million years ago approximately
nuthinq . a star ?
The Ichthyosaurs, predatory sea reptiles, were rather like modern dolphins. They existed from the Early Triassic Period (250 million years ago) till the Middle Cretaceous Period (100 million years ago).