Added: 2 years ago
From: highschooleLearning
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  • Marijuana will cause problems in the development of adolescent brain. Very serious problems if adolescents smoke it on daily basis. Again no long term problems on adults as the brain stopped developing. Futhermore mariujana which has been made as a hybrid to be more potent can cause psychosis due to elavated psychotropic element within the plant. There has been no recorded problems of smoking mariujana which has natural growth and has not been engineered.

  • It may be very strange to many of you but nobody ever died of cocaine overdose. It's way safer then say heroin which may kill the user on the first shot if the dose is too high.

  • main tool we use is insturment GC-MS or gaschromotograph-mass spectrometer. It's a brilliant instument giving you the ability to find molescule amounts or traces of drugs, poisons, and other things in samples you have.

  • I love this video. I am very interested in forensics.

  • THANK YOU for the help for my project

  • They found cocaine in Egypt in tombs so it is well over that it was I believe laves. Many things from the Americas were exported thousands of years ago in the spice trades the Silk Road. The Americas had contact through Asia look at the faces on Easter Island. And the temples in south America it is all linked the Vikings were hear to the whole thing with Columbus is a foot note history is a lie I know many truths

  • @shellnet411 and science brings the truth back to history well the history I was taught in school as a kid with Columbus discovered America but the Americas were already inhabited so he far from discovered it not to mention that Asia had a history of trade and if you look at the tribes on the west cost of the us the natives look like they have some Asian in them so thair was contact before 1492

  • Very informative! Ritalin is actually a methylphenidate though and not an amphetamine. The biggest difference is the stimulation of serotonin (5-ht) which is a indolamine and not a catecholamine.

  • thank you!

  • great info. Thank you

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