The following are natural resources except

Cellophane is not a natural resource. Natural resources are naturally occurring materials that are used by humans to satisfy their needs, such as food, shelter, and energy. Examples of natural resources include soil, water, timber, minerals, and rubber. Cellophane, on the other hand, is a man-made material that is derived from cellulose, which is a natural polymer found in plants. Although cellophane is made from a natural material, it is not found in nature and requires a manufacturing process to produce. Cellophane is commonly used as a packaging material due to its transparency, flexibility, and resistance to moisture. However, it is not a natural resource because it does not occur naturally in the environment and must be manufactured using energy and other resources. Therefore, of the options given, cellophane is the only one that is not a natural resource.