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Because, your body ages everyday, so ,,its like a clock ,tik, tik :)
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∙ 12y ago
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What is absolute age?
Absolute age is the age of a rock as determined by the measurement of radioactive decay from the time of the rock's formation.
How is radioactive decay used to determine the absolute age a rocks?
The basic idea is to measure the amount of the radioactive isotope, and of one or more of its decay products. The older the rock, the larger the percentage of the original isotope that decayed - so the ratio between the original isotope and the decay product changes over time.
What changes over time?
Age.
When scientists measure the ratio of unstable atoms to stable atoms in a sample of rock what are they trying to determine?
They are determining the age of the rocks. Radioactive elements decay over time, so the composition of a rock can indicate when that particular strata was formed.
What is the average age of someone 5foot 6?
After puberty and before decay with age, height and age are not related.
How does radioactivity allow us to estimate the Earth?
Radioactive or radiometric dating allows us to estimate the Earth's age by giving us the actual age of rock within a range of several million years. Radiometric dating is based on the scientific law of radioactive decay and the half-life of radioactive elements. Uranium and some other elements decay into lead over time at a specific rate. Knowing the content of these elements in the makeup of a rock allows its age to be calculated. Currently, the oldest rocks of Earth origin are estimated to be over 4 billion years old.
How the process of radioactive decay can provide more accurate measurements of age compared to relative age dating?
Because radioactive decay happens at a constant rate. Once you figure out the rate of decay, called the half life, you can date stuff.
Use the term radioactive decay in a sentence?
"The radioactive decay of certain unstable isotopes is used to calculate the age of objects."
What is another way to age a fossil?
By radioactive decay process.
How did the discovery that mass is a form of energy resolve the debate over Earths age?
by know of initial mass of the earth and mass of the earth in this time we can find mass decay of the earth and by the formula of E=MC2 we can find the energy of the earth and when we have the energy by formula E=E0e(it) we can find t that is the time
What scientist suggested the use of radioactive decay to age the Earth?
Rutheford
Why are you shortening in height?
If you are over 50 or so, it is because as we age, we lose calcium in the bones and the body begins to shrink. We don't notice it as it happens, only when we get measured over long periods of time, such as once a year.
