The release of a liquid petroleum hydrocarbon into the environment is_______

Step 1: Analyze the question The question asks for the term describing the release of liquid petroleum hydrocarbon (crude oil or refined products) into the environment. This is a pollution and environmental economics idea, which is very relevant in Nigeria, especially the Niger Delta.

Step 2: Explain the key terms

• Oil glut: An oversupply of crude oil on the world market, which pushes prices down.
• Oil spill: The accidental or deliberate release of liquid petroleum hydrocarbon into the environment, especially marine areas, rivers, or land. It is a form of pollution.
• Oil shock: A sudden, sharp rise or fall in oil prices that affects economies, such as the 1973 oil crisis.
• Oil wastage: This is not a standard technical term. It refers loosely to inefficient use of oil.

Step 3: Match the definition The words "release... into the environment" point directly to pollution. Only an oil spill fits this definition. Oil glut and oil shock are about market supply and prices, not environmental release.

Step 4: Answer The correct option is B. Oil spill.

Tip: Look at the key action word. "Release into the environment" means spill. "Oversupply" means glut. "Sudden price change" means shock. Remember that oil spills in the Niger Delta (such as from pipeline vandalism) are a common example in Nigerian exams.