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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 »

www.reference.com Science Environmental Science Pollution

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 »

www.reference.com Science Earth Science Erosion & Weathering

Examples of biodegradble things are paper, cotton, human and solid waste. When disposed, biodegradable materials are broken down by microorganisms and other living things in a reasonable time period. More »

www.reference.com Science Environmental Science Natural Resources
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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 »

www.reference.com Science Environmental Science Pollution

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 »

www.reference.com Business & Finance Financial Calculations

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 »

www.reference.com Geography Central America

Water pollution can occur via several mechanisms, but the most common causes are dumping industrial waste and sewage into bodies of water, along with the use of toxic substances in agriculture that runs off into rivers. ... More »

www.reference.com Science Environmental Science Pollution