arrestees test positive for drug use. at the time of their apprehension.1. Self-reports from prison inmates. indicate that their drug use prior. to incarceration is typically chronic. and linked to other criminal behav-. ior.
A megagram is the same thing as a metric tonne. There  are a million grams in a megagram. There are a million micrograms  in a gram. Therefore, there are 1,000,000 x 1,000,0 â¦ 00 micrograms in  a negagram, which means 1,000,000,000,000 or a trillion.
Also remember, that mcro, by SI convention means 0.000001, or a millionth (of a gram) and milli means 0.001. 0.001/0.000001 is 0.001. So this means a microgram is 0.001 milligrams, 0.001 milligrams to get this to 1 milligram, you have to multiply by 1000. Therefore you have 1 milligram equals 1000 micrograms.