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Someone who is half a million years old is 500,000 years old. This age is far beyond the lifespan of any human, as the oldest known humans have lived for just over a century. In the context of geological or evolutionary time, however, such an age could refer to ancient species or fossils, but no living organism can reach this age.
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How old is someone that is 1 million days old?
Almost 2,738 years.
How old would I be if I lived a million days?
A million days is almost 2,738 years.A million hours is about 114 years.A million minutes is about 1 year and 11 months.A million seconds is about 11 and a half days.
How do you write two and a half years old?
To write "two and a half years old," you can express it as "2.5 years old" or "two-and-a-half years old." Both formats clearly convey the age in a concise manner. In informal contexts, you might also use "2 ½ years old."
How old is a mineral that contains 25 percent U-235?
To estimate the age of a mineral containing 25% U-235, we can use the half-life of U-235, which is about 703.8 million years. If the mineral has 25% U-235 remaining, it has undergone two half-lives (100% to 50% to 25%). Therefore, the mineral is approximately 1.41 billion years old (2 x 703.8 million years).
How old would you be if you have lived for a million seconds?
You would be about 11 and a half days old.
How old is Half Dome?
87 million years old
A radioactive isotope called RI which has a half-life of 9 million years A geologist has used radiometric dating and determined the rock to be approximately 18 million years old How many half lives?
The rock is 2 half-lives old. 18 million years divided by 9 million years (half-life of RI) equals 2.
How old is someone that is 1 million days old?
Almost 2,738 years.
How old is a person who is 100 million second old?
A person who is 100 million seconds old is approximately 3.17 years old.
How old is Bray Head in Co Wicklow in Ireland?
It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.
Approximately how old is the Earth 4.6 billion years old 3.8 billion years old 4.6 million years old 3.8 million years old?
Approximately how old is the Earth? 4.6 billion years old 3.8 billion years old 4.6 million years old 3.8 million years old
How old would I be if I lived a million days?
A million days is almost 2,738 years.A million hours is about 114 years.A million minutes is about 1 year and 11 months.A million seconds is about 11 and a half days.
How many years old is a person who has lived for a million years?
A person who has lived for a million years would be a million years old.
How old is the Nile River?
As old as history itself, at least a few million years.
The daughter isotope is 87.5 percent if the half-life of the isotope is 150 million years how old is the sample?
To find the age of the sample, we need to determine how many half-lives have passed based on the daughter isotope percentage. Since the daughter isotope is 87.5% present, it means 12.5% has decayed from the parent isotope. Since 1 half-life would result in 50% decay, we can divide 12.5% by 50% to get 0.25 half-lives. Therefore, the sample is approximately 150 million years (half-life) x 0.25 = 37.5 million years old.
How old are you when you have lived for a million years?
One million years.
If a radioisotope has a half life of 400000 years and only 6.25 percent of the original radioisotope was present in a rock how old is the rock?
The rock is approximately 3.2 million years old. This can be calculated by dividing the half-life of the radioisotope (400,000 years) by the time it takes for 6.25 percent of it to remain (0.0625), which gives us 6 half-lives. Multiplying 400,000 by 6 gives us 2.4 million years, and since we need to account for the original amount as well, the total age of the rock is 3.2 million years.
