Hard worker
maths and physics
Salt is the most valuable resource that was needed by the inhabitants in the savanna lands of West Africa =)
it was needed in north africa because north africa had none and it wanted some
Actually, they needed a lot of clothes and some bones and everything else.
Southern states/colonies where plantations needed the labor to maintain their life style.
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book
maths and physics
Yes, auto mechanics does have to finish schooling to be a licensed auto mechanic. You don't have to have schooling to work as a mechanic but if something goes wrong with someone's car then you would be liable like a licensed mechanic.
go to this website http://www.ehow.com/how_5134_become-auto-mechanic.html this is stupid this website does not work
The same as any mechanic, do the needed repairs and maintenance correctly in a reasonable time frame.
fix things
Alot. It never seems enough.
An aviation mechanic must get 18 months of practical experience with either power plants or airframes, or 30 months of experience working on both at the same time. Or graduate from an FAA approved school. http://www.faa.gov/mechanics/become/basic/
No Maths is needed to become an engineer.
The tasks of a marine mechanic are to maintain the vessel's engines and mechanical systems. They are responsible for ensuring they run at optimal efficiency and perform repairs as needed.
It sounds like a specialist mechanic is needed to adjust the parking system.