For what purpose did writers use realism

Why is it useful for historians to base certain studies on the analysis of historical periods

What is the purpose of biofertilizers? a reduce pollution b. reduce insect threats c. reduce erosion d reduce herbicide use select the best answer from the choices provided 0 0 0 0

In which supreme court case did the court rely on the concept of implied powers to make its ruling? a) gibson v. ogden b) mcculloch v. maryland c) dartmouth college v. woodward d marbury v. madison