Examlex
Hypertension is more common among Whites than among Blacks.
Stable Isotope
Non-radioactive forms of atoms that have the same number of protons but a different number of neutrons, used in various scientific applications to study and trace processes.
Radiometric Dating
A method for determining the age of an object containing organic material by measuring the levels of various isotopes within it.
Earth's Crust
The outermost layer of the Earth, composed of a variety of rocks and minerals; it forms the continents and ocean basins.
Fault
A fracture or zone of fractures between two blocks of rock, which can cause large scale earth movements.
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