Which of the following statements is true?

1)magnetic fields are strongest in the middle of the magnet.
2)a magnetic field can be created by running an electric current through a magnet.
3)electricity flows from positively charged area to negatively charge areas.
4)static electricity is a build up of free protons and neutrons.

A magnetic field can be created by runningan electric current through a mgnet

the mexican-american war was a conflict between the united states and mexico, fought from april 1846 to february 1848.

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.