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How do people know what the earth was like billions of years ago?
Wiki User
∙ 13y ago
Scientists do not know exactly what happened, but they are able to make educated guesses from volcanic rocks and fossils. From these rocks and fossils, an age can be determined and sometimes what the rock/fossil went through. One example of this is a fossilized dinosaur foot print. From the fossil, scientists can find the species of dinosaur, and when it lived. They can find the age of the fossil similar to how you can find the age of a tree. In a tree, there are many rings and each of these is a layer that forms over the year. This is similar to how you can find the age of a rock/fossil.
Wiki User
∙ 13y ago
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When did the first volcano to erupt?
The first volcano erupted before man kind even existed. But will still don't know what the first eruption was. That is the question we may never know. Volcanoes dated back in the millions or even billions.
How old is Earth in two years?
the earth is between 4.5 and 5 billion years old don't ask how i know that i just do
Although you know from chemical evidence that life on Earth evolved as early as 3.5 billion years ago the most ancient available fossils are only 0.54 billion years old This is because of what?
Stromatolite fossils date back billions of years. More complex life forms began evolving in abundance in the Cambrian Era, which is the time frame referred to in the question.
When were the fossils first found?
It is estimated that the very first fossils were found 3 billions years ago. There is really no way to know if the dates were not recorded.
When did the first lightning bolt strike?
The exact date of the first lightning bolt strike is unknown as it predates written history. Lightning has been occurring for billions of years, since the formation of Earth's atmosphere and the development of electrical activity within thunderstorms.
When did God create the heavens and earth as it states in Genesis 1 Do you know how many years ago that was?
According to Genesis 1, God created the heavens and the Earth in the beginning. While the exact timeframe is not specified in years, many Abrahamic religions believe this act of creation happened around 6,000 to 10,000 years ago based on genealogies and timelines mentioned in the Bible.
Is earth the only earth out there?
yes otherwise its like mars and stuffAnswerNobody knows yet - hypothetically there could be billions of them out there, but earth is the only earth-like planet we know of today. no one is certain but you never know because there could be other people out there to and we dont know
What is the age of the Milky Way Galaxy?
No one really know how old our galaxy is, but most scientists belive it is billions years old. Personally, I don't belive that our galaxy is billions of years old. I belive that the galaxy was created when the earth was created. So, I think that the out galaxy is only about 2,000 years old or so.
How long has earth hour been around for?
Well, i know that the earth has NOT been around for millions and billions of years. People say it has been, and i mean A LOT of people say that, but it hasn't. The earth has only been living for maybe about 5-10 years! I know this because i'am a christian. I hope all of you will be able to learn that God is your real father. Jesus saved you from your sins and God made this world. He did it on his own. He is our true and pure father :) P.S: The question to my answer is: How long has the earth been around and who made it :)
How many people will live on the earth in 100 years?
There is no way to know.
Why can you still see stars after they have died?
The nearest star (other than the Sun) is 4.7 light-years from Earth, meaning it takes 4.7 years for light from that star to reach us. That star could die and we would not know it for 4.7 years. Some stars are billions of light years away, it would be billions of years before we noticed that the star was no longer shining.
Was the moons from all planets all once one planet?
No, but you are close. Lets take Earth for example. Billions of years ago, a huge rock hit earth and a part of Earth broke away from Earth, but stayed in gravitational pull, and eventually became what we know today as the Moon
How do you act if you see a mermaid?
Amazed! If you do then you proved hundreds of years of history and billions of people wrong. And since anythings possible, you never know what you'll see.
What is the most easterly point of in north America?
We don't know. Billions of years ago!
When does scientist think the world is going to end?
I do not know but I know that it will not end until at least billions of years will pass.
What is pangea and how did it become apart?
Pangea is the name of the supercontinent that existed on earth billions of years ago. Through plate tectonics, parts of Pangea drifted apart to form the continents we know today.
Could the planet Earth be a lot older than geologists currently believe?
The age of the Earth, about 4.6 billion years, isn't really in dispute. Could it be a LOT older, as in billions of years older? No. We know that the Sun and our solar system are at least 3rd generation stars; otherwise there would be no heavy elements in the Earth.
