Lists of biodegradable materials present indexes of goods, equipment and substances that break down in nature. Most lists of biodegradable substances are available online through the websites of environmentally conscious... More »

A non-biodegradable material is one that does not break down or does not break down easily in the environment. These items collect over time and can pose a threat to the environment. More »

Natural materials are defined as products and physical materials from the natural world. This definition is in contrast to man-made or synthetic materials. There is a wide variety of natural materials that exist, and the... More »

Primary pollutants are those substances directly emitted into the atmosphere that may cause harm to living organisms or upset the natural balance of nature. Examples of primary pollutants include carbon monoxide, sulfur ... More »

The items that make up the cost of goods sold are the materials, equipment and labor that go into creating the goods. Many marginal cost items affect the actual cost of producing and selling items. More »

The Republic of Nicaragua's major imports include petroleum products, raw materials, machinery and equipment, consumer goods and packaged medicines. About 17 percent of the top five imports of Nicaragua come from the Uni... More »

Types of soil pollution include agricultural soil pollution, soil pollution by industrial discharges and solid wastes, and pollution due to urban activities.Soil is sometimes polluted with substances including misplaced ... More »