There are twelve Federal Reserve Districts in the United States. Number 1 is in Boston and covers the New England states, while number 12 is in San Francisco and covers the Western states, including Alaska and Hawaii. Source(s): http://www.federalreserve.gov/otherfrb.h... Sailinlove Â· 1 decade ago.
Layers in glaciers show a history much longer than 10,000 years, and radiometric dating places the formation of the Earth at 4.5 billion years. Light from galaxies is reaching us billions of years after it left, and the expansion rate of the universe dates its age to 13.7 billion years.
By this method, the age of oceans will equal the total salt in oceans (in grams) divided by rate of salt added (grams per year). Age of Earth was calculated to be 90-100 million years. Problems: no way to account for recycled salt, salt incorporated into clay minerals, salt deposits. 1  In 1860, the thickness of total sedimentary record is divided by average sedimentation rates (in mm/yr) and calculated to be about 3 million years old.