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the disadvant
They use questionaires to test the brain and figure out what going on. The also use some tools doctors use.
census
OPM
Statistics are used in geography to track locations and census information. This is important to know to see how different types of geography change.
Observation, Experiment, Surveys, Interviews, Questionaires
There are 2 mainly types of migration,temporary migration as well as permanent migration.
There are hundreds if not thousands of different government jobs. Of course the military is a government job. There are also job like census taker, DMV worker, FBI and a whole lot more.
By Census
nothigng mate
Office of Personnel Management (OPM)
One can find census records for the United States on a few different websites. Some of the sites are the United States Census Bureau and Family Search.