Is oil from an oil rig perishable?

What did Malcolm X to further the cause of civil rights? How was the US involved in various regions of the world in the 1950's? How long does it take after the medical examination to get a Canadian study permit? Why did the Klan eventually lose popularity and membership? Is forest a pollution? Me and my best friend have a bromance... How should I tell him I'm bisexual? What were the effects of the Exxon Valdez oil spill you 1989 to wildlife environment and economy? How does phytoremediation harvest heavy metals and nitrates from soil and water? Is water you drink pure or polluted? Are dams renewable? When was Journalists for Human Rights created? Is there a retirement plan for the Amalgamated Clothing Workers Union you worked for them in 1976? What is hadeharia? What causes oxygen to change into ozone? What is Malcolm X's legacy? What is overgraze? Is acid precipitation a primary pollution? What causes Transient global amnesia? What countries do not require a visa to enter US? Do icebreakers have a negative effect on antarctica?