Which of the following is an example of secondary processing. Casting Iron Into an engine. Metal to Ingots Trees into Lumber Drilling Oil Crude Oil is acquired by. __ Organic Ceramics composites Metals Physical Polymers Mining Thermoset plastics Drilling Harveting Clear

The question is asking for an example of secondary processing. Secondary processing refers to the process of converting raw materials into finished or semi-finished products. This is done by adding value to the raw material through processes such as shaping, cutting, and assembling. In the options provided, "Casting Iron Into an engine" is an example of secondary processing. This is because the iron, which is a raw material, is being shaped and assembled into an engine, which is a finished product. The other options, such as "Metal to Ingots", "Trees into Lumber", "Drilling Oil", "Crude Oil is acquired by", "Organic", "Ceramics", "composites", "Metals", "Physical", "Polymers", "Mining", "Thermoset plastics", "Drilling", "Harveting", "Clear" are not examples of secondary processing. They are either raw materials or processes that do not involve the conversion of raw materials into finished products.