...the world. it's for a project i have to do. thanks :-)
2006-10-13 05:06:29 · 9 answers · asked by Chocolate Lover♥ 7 in Science & Mathematics ➔ Earth Sciences & Geology
It's based on several things:
1) dating meteorites. When we find a meteorite from this solar system that has a similar composition to earth, you get many young ages, but the oldest and most common date to 4.6 Ga (billion years).
2) isotope trends. When you look at certain radiogenic isotope ratios that change with time, like Rb/Sr or U/Pb, you find that many rocks with differnt ratios of many ages form a line, and the line traces back to an origin of 4.6 Ga as well.
The oldest life is 3 1/2 Ga, the oldest rock is about 4 Ga, and the oldest date ever found is on the highly durable mineral Zircon from Australia, it's date is 4.2 Ga. So, there is no direct method, it is based on inferences. However, many different inferences lead to the same number 4.559 Ga (to be specific).
You would have to throw out everything we know and love about Geology to accept a young earth view. When you look at the Grand Canyon, how can you say that only took 6000 years to form?
2006-10-13 08:55:47 · answer #1 · answered by QFL 24-7 6 · 1⤊ 0⤋
They estimate that the world is 4 1/2 billion years old.
2006-10-13 05:15:19 · answer #2 · answered by smurf 1 · 0⤊ 0⤋
Around 4.5 billion years old .
But the sad fact is a recent Gallup poll concluded that nearly 50% of the American public believes the universe is less than 10,000 years old. Nearly half the population, in other words, believes that the entire universe, the sun and solar system, including our Earth, the Milky Way galaxy, the Andromeda galaxy, and all the billions of other galaxies, all began after,as science has proved, man had domesticated the dog!
2006-10-14 09:26:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The generally accepted age for the Earth and the rest of the solar system is about 4.55 billion years (plus or minus about 1%). This value is derived from several different lines of evidence.
2006-10-13 05:16:27 · answer #4 · answered by Anonymous · 2⤊ 0⤋
Earth is around 4 and a half billion years old.
And the Universe is around the age of 15 billion years.
2006-10-13 05:14:46 · answer #5 · answered by Ateviel 3 · 2⤊ 0⤋
The world began at sunset on Saturday October 22, 4004 BC.(time zone not certain, presumably local time in the Garden of Eden) Seriously! Check out the link below.
Note: Please understand, I personally do not subscribe to this theory. The earth is estimated to be approximately 4.5 billion years old.
2006-10-13 07:49:46 · answer #6 · answered by ? 4 · 0⤊ 1⤋
The sun is the beginner of the solar system and it is 5 billion yrs old.So the other planets r ought 2 b less older than the sun.
About other star systems i don't know as i am just 15, but if u r confused just ask the teacher himself.
2006-10-13 05:13:18 · answer #7 · answered by cutey 2 · 0⤊ 2⤋
That's a good question, but since no one knows the real answer, I'd estimate millions of billions of years....
Do you think the teacher will go for that answer???
2006-10-13 05:19:05 · answer #8 · answered by Kerilyn 7 · 0⤊ 2⤋
what do u mean by the world ? if it is the earth so its 4600 million year .. if it is the universe its 13.5 billion years ..
2006-10-13 09:24:56 · answer #9 · answered by Geo06 5 · 0⤊ 0⤋