4600 million years ago
The Earth is believed to have coalesced as a solid body roughly 4.5 billion years ago.
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
The Precambrian era spans from about 4.6 billion years ago to 541 million years ago, encompassing almost 90% of Earth's history. It is divided into three eons: the Hadean, Archean, and Proterozoic eons.
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.
4.6 billion is the closest.
The Precambrian period was from 4600 million years ago to about 542 million years ago.
about 4600 million years ago
Earth! also expressed as 4.6 billion years old
Ordovician 4000 to around 4600 million years ago
The Earth is believed to have coalesced as a solid body roughly 4.5 billion years ago.
2590 BCE
Around 4600 million years ago, Earth's atmosphere likely consisted of gases such as hydrogen, helium, methane, and ammonia. There would have been little to no oxygen present during this ancient period. Over time, the atmosphere evolved due to processes like volcanic activity and the emergence of photosynthetic organisms.
4600
4.6 billion years.
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
The Sun is middle aged it formed 4600 million (4,600,000,000) years ago and will shine for another 5400 million years.
16 million years ago approximately