Please write down a short discussion according to the question asked above. Thank you! Like will be given

6. Differentiate between purchasing, procurement, materials management, logistics, supply management, and supply chain management. 7. In what ways might e-commerce influence the role of supply managers in their own organizations? In managing supply chains or networks? 8. In the petroleum and coal products industry, the total purchase/sales ratio is 80 percent, while the food industry it is about 60 percent. Explain what these numbers mean. Of what significand is this number for a supply manager in a company in each of these industries