Refining is the process of purifying raw materials, such as crude oil or metals, to produce usable products. This involves separating impurities and converting the raw material into a more valuable form. For example, in the oil industry, refining transforms crude oil into gasoline, diesel, and other petrochemicals. Marketing involves promoting and selling products to consumers. It includes strategies to identify target audiences, create brand awareness, and communicate the benefits of products. Effective marketing can increase sales and build customer loyalty, making it essential for businesses in various industries, including those involved in refining and manufacturing.