Sunken marine power plants are one of the most dangerous types pollution. The reason for this is that various petroleum products settle at bottom sea and can remain there a long time, which causes irreparable harm to environment. Recently, problem decomposition in water has become particularly relevant. Oil its toxic components quickly destroy ecosystem, will entail dramatic consequences living...

Petroleum and petroleum-derived products can contribute to the inhibition of growth and development of plants. Soil contamination by these compounds either hampers or makes difficult the intake of water and mineral salts from the substrate, and also breaks a number of metabolic processes. As a result of the deficiency of chlorophyll and nutrients, the affected plants grow deformed roots, shoots...

the organization of the petroleum exporting countries (opec) has a key role in making universal political and economic decisions regarding petroleum. therefore, it seems highly important to assess the opec member’s degree of concentration and its monopoly.  this research, aims to assess and classify the concentration of petroleum export in the opec countries during the 1997-2011 period by the h...