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What is the date the earth was formed?
well in many believes is that the earth was always here and will always be.
When do scientist think the earth was formed?
Scientists believe that the Earth was formed around 4.6 billion years ago through the accumulation of dust and gas in the early solar system. This age estimate is based on radiometric dating of meteorites and rocks from Earth.
A well-defined group of objects that transfer energy to one another?
A system is a well-defined group of objects that transfer energy to one another. This transfer can take place as a result of mechanical work, heat, or electromagnetic radiation within the system. Systems can be open, closed, or isolated depending on the exchange of matter and energy with their surroundings.
Is earth an open or closed system in terms of matter?
Earth is a closed system in terms of matter, meaning that no new matter is added from outside the system. Matter can cycle within the Earth's systems (such as the water cycle or carbon cycle), but it does not enter or leave the planet.
When was the Earth founded?
Authorities mostly agree that the age of the Earth is about 4.54 x 109 years. This agrees with the age of the Sun according to stellar growth and luminosity models, and also agrees with meteor dating. The dating is done by radiometric methods. The oldest rocks on the Earth (in Australia) are in excess of 4 x 109 years old. The Universe is about three times as old.
Why can't radiometric dating be used with accuracy on metamorphic rocks?
An accurate radiometric date can be obtained only if the mineral remained a closed system during the entire period since its formation this is why radiometric dating can't be used with accuracy.
What radiometric system applies to the Jurassic time period?
The Jurassic is an age that began about 200 million years ago and stretched for about 50 million years to about 150 million years ago. Radiometric dating can identify certain materials as being from that period, but we don't have a "radiometric system" for the Jurassic, per se. Radiometric dating is part of the radiometric (from radioactive measuring) system we use to investigate a number of different things, including the age of materials found on the earth and elsewhere.
What Assumptions must be made when using radiometric dating methods?
Assumptions when using radiometric dating methods include that the initial amount of parent and daughter isotopes is known, that there has been no contamination or loss of isotopes from the sample, and that the decay rate of the isotopes has remained constant over time. It's also assumed that the system has been closed to outside influences, which could alter the decay process.
What evidence indicates our solar system is about 4.5 billion years old?
The age of the Solar System HAS TO BE at least as much as that of the oldest rocks found on Earth, other planets, or asteroids (if you assume that those rocks come from the Solar System) - and that's what has been found. And that's the approximate age of the oldest rocks found. The main methods used rely on radiometric dating. For more information, check the Wikipedia (or other sources) for:* Age of the Earth* Radiometric dating
What is the use of a metal lead relating it with uranium?
The system uranium-lead is very important for radiometric dating of rocks (ages between 106 and 5.109 years).
What eons old is the world today?
Our Earth and most of the Solar System is about 4.5x109 years old. This is established by radiometric dating, commonly by the uranium - lead series.
What is the approximate age of the solar system'?
The solar system is estimated to be about 4.6 billion years old. This age is determined by radiometric dating of rocks from the Earth and Moon, as well as meteorites.
Do amphibians have an open circulatory system or a closed circulatory system?
Amphibians have closed circulatory system Closed
Do sharks have an open or closed circulatory system?
Brown bear have a close circulation system
What is the date the earth was formed?
well in many believes is that the earth was always here and will always be.
Is the water cycle open or closed system?
Closed System
Atronomers believe that the solar system is about how many years?
Astronomers believe that the solar system is about 4.6 billion years old. This age is determined by studying the ages of rocks on Earth and meteorites from space that have been dated using radiometric dating techniques.
