More like over 4 billion years - that's the approximate age of planet Earth.
Hundreds of millions of years
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.
800
50,000
The 3 is in the hundreds place. Remember numbers are set up in the following way. Example: 9,614,200,369.2345 Billions, Hundred Millions, Ten Millions, Millions, Hundred Thousands, Ten Thousands, Thousands, Hundreds, Tens, Ones, Tenths, Hundredths, Thousandths, Ten Thousandths.
Hundreds of millions of years
The formation of buttes occurs on a geological timescale. This can be from millions to hundreds of millions years.
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.
Sedimentary rock can become metamorphosed after millions or hundreds of millions of years. Most geologic processes, like metamorphism, are extremely slow in human terms.
Not just hundreds of millions. The observable universe contains hundreds of billions of galaxies.
A geologic record means something which is present in the Earth's surface between various layers of sediment. By determining which layer they are present in, geologists are able to understand the time period something was originally placed there.
Millions or even hundreds of millions of years old.
Hundreds of millions.
20,000
800
There must be tens of millions of dogs in Africa, possibly hundreds of millions.
Geologic time consists of eons, eras, periods, epochs, and ages. These measure periods of billions or millions of years.