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thousands of years
139 thousands in decimal form is 139,000139 thousandths in decimal form is 0.139
12,000 = twelve thousands
19.0210 is 19 and 210 ten thousands in decimal form.
The standard form is 9,209,000
Typically thousands to hundreds of thousands of years.
thousands of years
thousands and thousands, there fossil fuels
Yes
by erosion but it takes thousands of years to form.
Erosion, it happened probably over thousands of years
A sedimentary rock takes thousands to million of years to form because it is formed from lava (or magma). After thousands and millions of years, allowing the rock to cool, forms a rock shape, which we call a sedimentary rock. Please don't copy and paste this answer to present it as your own. Your Welcome!
No, some form quickly, some take thousands of years to form, some take millions of years to from.
That's extremely variable and specific to each cave, but you have to think in tens or hundreds of thousands of years.
It takes thousands of years to form because the rocks have to break down into little pieces.
tattooing is an ancient art form that started thousands of years ago in Egypt
Sea stacks form over a long period of time—thousands or even millions of years.