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Not at the current rate of consumption.
In the United States, the ratio of firemen to population is: 2.5 firefighters per 1000 of population. This has been a constant ratio for the last couple of years.
20 years
The last 65 million years. It is the current era and is divided into three periods; the Paleogene, Neogene and Quaternary.
According to the Bureau of Engraving and Printing, current $5 bills last about 3.8 years in circulation.
The known reserves of Bauxite (the ore from which aluminum is mined) are expected to last another two hundred years or so if we continue to mine it at current rates.
Coal resources are predicted to last at least 250 years at the current use rate
ABBA as a group has not had a current song in over 30 years. The Day Before You Came was officially their last song recorded as a group in August 1982.
Take the last two digits on the current year. That number is how many years ago the 1990s were.
Under current US law life of the author +70 years or in the case of work-for-hire 95 years post publication
The ratio was five to one.
Gear ratio is the ratio of the rotational speeds of the first and last gears. It reflects the change in mechanical advantage which results from the gears.