1. The circular flow diagram is a model used to demonstrate how a given economic system functions through the interactions of 1" agent of economics and 2" agent of economics. Identify the roles of each of these actors through a set of example. Using a suitable diagram, draw and elaborate the Circular Flow Diagram (Physical and non- Physical flow) in economies. (10) (Total :10 marks) 2. In business analysis, the production possibility frontier (PPF) is a curve illustrating the varying amounts of two products that can be produced when both depend on the same finite endowment of resources by one country. The PPF demonstrates that the production of one commodity may increase only if the production of the other commodity decreases in economy. By using the Production Possibilities Frontier Curve (PPF), explain the concepts of: i. Inefficient allocation of resources (2.5) ii. Efficient allocation of resources (2.5) iii. Unattainable point. (2.5) iv. Scarcity of resources. (2.5)