Answer: 1.- Gandhi is writing the letter to Lord Irwing ( the British Goverrnor). civil disobedience is denial to agree with certain laws or to pay taxes as a form of peaceful protest.
2.- Gandhy says by walking to the ocean and picking some salt: This salt is free. Why do Indians have to pay taxes?. Salt in India is very useful specially for poor people and they are the ones that will suffer more if it rises.
3.- They would ignore the salt tax with some colleagues.
4.- Because Gandhi doesn't like violence and he always obeys the law. Civil disobedience has to be a non-violent act to have success.
5- Gandhi was a thoughtful person and he was taking level-headed decisions.