The extra amount of satisfaction that you receive from an additional slice of pizza is part of the marginal benefit. true?

The statement 'The extra amount of satisfaction that you receive from an addition slice of pizza is part of the marginal benefit.' is true. Since 'marginal' pertains to 'adding' - or in this case the word 'extra' - then it is true that the marginal benefit of the extra amount of satisfaction from the pizza is true.

Rome was a dangerous place, politicians and generals went to war to increase power and people couldn't get enough food.