What kind of source would a historian use to get a firsthand account of a past event

1) both gandhiji and bhagat singh believed in ‘inquilab’. however, both of them differed in their strategy to bring about ‘inquilab’. find out a. what does ‘inquilab’ mean? b. what was the strategy followed by the two leaders in bringing about ‘inquilab’? answer it quickly pls

People who move from place to place for survival is called

Joanna eats 1/8 of a pepperoni pizza, 2/8 of a pizza and 1/8 of a pizza how much of one whole pizza does joanna eat? how many slices are left