The seismic waves that shake the ground in a vertical fashion are Rayleigh waves-surface waves.
Rayleigh waves-surface waves move in an elliptical motion. They can be both vertical and horizontal component of motion in the direction of wave propagation. They are caused by earthquakes.
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
The maximum number of orbits in an atom is seven.
So the answer is C) Seven (7).
Answer:
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