Question

The age of materials determined are published in the journal named.
options:-
1) evolution treatis
2)origin of species
3)radio carbon
4)encyclopedia

choose the correct
option​

Answer 1

Answer:

i think the answer will be 4. encyoclopedia

Answer 2

Answer:

Option 3 Radio Carbon is the correct answer.

Explanation:

Radiocarbon dating is also known as carbon dating or carbon-14 dating is a method of determining the age of objects, including organic material, using the properties of radiocarbon, a radioactive isotope of carbon. This method was developed by Willard Libby at the University of Chicago in the late 1940s.

• This is radiocarbon (14 C) is constantly produced in the Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen.
• Result 14 C combines with atmospheric oxygen to form radioactive carbon dioxide, which is taken up by plants through photosynthesis.

• Then the animal gets 14 C by eating plants.
• When animals and plants die, they cease to exchange carbon with their surroundings,14 C content starts to decrease from day 14 C undergoes radioactive decay.
• Weigh 14 C in samples from dead plants or animals.
• A piece of wood or bone provides information that can be used to calculate when an animal or plant died.
• The older the sample, the less 14. Since C must be recognized and has 14 half-lives C (the time it takes for half of a given sample to decay) is about 5,730 years.
• The earliest date that can be reliably measured by this method is about 50,000 years ago, but special preparation methods may be required for precise analysis.
• Libby was awarded the 1960 Nobel Prize in Chemistry for his work.

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