You should try to pay attention to your studies more and don`t let anything ruin your education, or you can take notes in class so you can concentrate more. Also you should try to talk less in class.
The best way to concentrate and study is to turn of the television, radio, and any cell phone.
Break it, and rebuilt it with things you already have.
The best way is to replace the complete halfshaft/axle assembly with a rebuilt unit. You will be done in no time. Replacing the boots is a chore and the cost of a rebuilt axle isn't much more than the boot kits.
The best way to achieve the right concentration is to avoid all distractions. This may include turning off the TV and moving to a quiet area.
The only way to lower it is by removing some or all of the water.
The related website is the best way to learn.
High torque starter
Studies show that the best way to solve this would be to use a calculator.
This is a hoax spread by the pseudoscience braingym that mysteriously finds its way into schools. Studies have shown that if a person is dehydrated after strenuous physical exercise then water will improve concentration. People are rarely dehydrated. Consuming water when not dehydrated has been found to have the opposite effect and decrease concentration. This happens in a similar way to the drop in concentration after eating food. So the simple answer is most of the time it will lower their concentration.
One that would teach you concentration, that way you have no need to watch it successively.
One way to increase concentration is to get plenty of rest at night, and take a nap during the day if exhaustion is sapping your concentration. Another good idea is getting plenty of vitamins C and A, take a multivitamin.
The best way to fix an alternator is to replace it with a rebuilt one from the auto parts store.