How old is the earth ??????

Question

How old is the earth ??????

Answer 1

The age of 4.54 billion years found for the Solar System and Earth is consistent with current calculations of 11 to 13 billion years for the age of the Milky Way Galaxy (based on the stage of evolution of globular cluster stars) and the age of 10 to 15 billion years for the age of the Universe (based on the recession of distant galaxies).

The best age for the Earth comes not from dating individual rocks but by considering the Earth and meteorites as part of the same evolving system in which the isotopic composition of lead, specifically the ratio of lead-207 to lead-206 changes over time owing to the decay of radioactive uranium-235 and uranium-238, respectively. Scientists have used this approach to determine the time required for the isotopes in the Earth's oldest lead ores, of which there are only a few, to evolve from its primordial composition, as measured in uranium-free phases of iron meteorites, to its compositions at the time these lead ores separated from their mantle reservoirs. These calculations result in an age for the Earth and meteorites, and hence the Solar System, of 4.54 billion years with an uncertainty of less than 1 percent.

To be precise, this age represents the last time that lead isotopes were homogeneous througout the inner Solar System and the time that lead and uranium was incorporated into the solid bodies of the Solar System.

Thousands of meteorites, which are fragments of asteroids that fall to Earth, have been recovered. These primitive objects provide the best ages for the time of formation of the Solar System. There are more than 70 meteorites, of different types, whose ages have been measured using radiometric dating techniques. The results show that the meteorites, and therefore the Solar System, formed between 4.53 and 4.58 billion years ago.  

Answer 2

4.54 Billion Years Old

Answer 3

4.5 billion years old.

Answer 4

4.55 billion years.

Answer 5

6000 years old

Fossilized Humanfoot prints and remains

Hand Print in Stone

http://www.creationevidence.org/index.ph...

Polystrate Fossils

http://www.creationevidence.org/index.ph...

Meister Sandal Track

with Trilobite embedded

http://www.creationevidence.org/index.ph...

The London Artifact

http://www.creationevidence.org/index.ph...

http://www.creationevidence.org/index.ph...  

Answer 6

About 6.5 billion years old.

Answer 7

i think about 6000 years old :) but everyone has different beliefs. no one knows for sure

Answer 8

4.6 billion years old (some say 4.55 byo)

Answer 9

Way too old. hope it can hold all of our pollution and stuff. hope i helped