There is evidence for life on earth at least some 3,600 million years ago. So the answer is non of the above but "thousands" of millions of years.
Hundreds of millions of years
More like over 4 billion years - that's the approximate age of planet Earth.
hundreds of thousands of millions of years ago is too far in the past - the universe is only 13.75 billion years old!However I know what you are asking and the organisms divided into three parts were the "trilobites". They lived about 500 million years ago.
It is a difference of scale. Interplanetary means between planets; it takes a ray of light minutes or hours to go from a planet to another planet. Intergalactic means between galaxies; it takes a ray of light hundreds of thousands of years, or even millions of years, to travel that distance.
The pentatnic scale is the oldest scale used by humans. It has appeared in folk music from around the world in songs that are hundreds, sometimes thousands of years old. It is thought that ancient Greek and Roman music used the pentatonic scale. It was not "invented" by one person.
Hundreds of millions of years
Millions or even hundreds of millions of years old.
No. The proportion and the amount of dissolved salts STAYED THE SAME for hundreds of millions of years.
No, Fossilization takes hundreds of millions of years.
For hundreds and millions of years
In the atmosphere. Hundreds of millions of years ago.
A plate will subduct for tens to hundreds of millions of years.
The formation of buttes occurs on a geological timescale. This can be from millions to hundreds of millions years.
because it takes hundreds of millions of years to form.
A plate will subduct for tens to hundreds of millions of years.
The Ozark Mountains are hundreds of millions of years old.
time scale that geological can back the past of the hundreds of years