Answer:
The budget deficit is the amount by which expenditures exceed revenues in a particular year, while the national debt is the cumulative effect of all past budget deficits and surpluses
Step-by-step explanation:
A government budget deficit is a negative flow where government spending during a particular year is larger than government revenues. While national debt is the stock of all the budget surpluses (revenues are larger than spending) or budget deficits that the government has accumulated over the years (theoretically since the first national government was established).