The area between bulges of water in the ocean is called troughs.
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Early scientific attempts st determining Earth's age gave a number that was around 4.6 billion years old.
<h3>Radiometric dating methods</h3>
The age of rocks can be most determined by radiometric dating.
This process of radiometric dating makes use of two different isotopes of a sample.
It is known that Radioactive isotopes break down within a known amount of time and this enables geologists to determine the age of a sample with the aid of equipment like thermal ionization mass spectrometer.
Learn more about Radiometric dating at
Explanation:
the welfare state is European in origin because its birth is commonly dated to late 19th ... market and life cycle) risks and how much their Robin Hoods redistribute income.
Both plates are folded into mountain ranges
