60 million seconds, 16666.666(repeating) hours, 694.444(repeating) days, 99.206349 weeks, or 1.907814 years ago.
One million is one thousand thousands. Three million is then three thousand thousands.
.3 is the same as three tenths. Three tenths of one million is three hundred thousand years.
There are 60 seconds in a minute and sixty minutes in an hour, so each hour is 3600 seconds. Multiply 24 to get days, and then 365.25 to get years, accounting for leap years. This is 31,557,600 seconds per year. Divide 1,000,000,000 seconds by 31,557,600 seconds per year, and you get 31 years, 251 days, 7 hours, 46 minutes and 40 seconds. (Why didn't I figure out the months? Because the months aren't equal!)
It would have been 149,997,988 years BC (in 2013). But, assuming that 150 million is, at best, accurate to the nearest million years, for all intents and prposes, the answer should be 150 million years BC.
Days not years Answer is between 11.5 and 11.6 days so less than a fortnight
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
dinosaurs roamed the earth about 65 million years ago.
270 million years ago
65 million years ago
there was animal life 4.8 million years ago
They lived from 2.0 million years ago to 1.2 million years ago.
The Mesozoic Period (251 - 65 million years ago) lasted approximately 216 million years. It consisted of the Triassic Period (251 - 200 million years ago), the Jurassic Period (199-146 million years ago) and the Cretaceous Period (145 - 65 million years ago).
60 million seconds, 16666.666(repeating) hours, 694.444(repeating) days, 99.206349 weeks, or 1.907814 years ago.
Around fifty million years ago.
4.567 million years ago
450 million years ago