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Practice Reading: Multiple Choice, Single Answer ID: #4386 Oil
Instructions ›
Read the text and answer the multiple-choice question by selecting the correct response. Only one response is correct.
When oil flows from reservoirs underground to the earth's surface, it becomes exposed to bacteria and air. This causes the oil to degenerate into a thick, syrup-like substance called bitumen. Bitumen's thickness and tendency to mix with other surface elements, such as sand and clay, make it extremely complicated to 'mine'. The extraction process requires digging up huge amounts of sand or earth with enormous machines and heating it to 80 degrees centigrade in order to liquefy the bitumen and make it easier to separate. Compared to traditional oil drilling, extracting surface oil is expensive and inefficient. Nevertheless, surface oil is becoming more competitive as traditional oil sources become more scarce.

What are the writer's views on surface oil?

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Result:

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Option 2: "It is increasingly popular despite collection difficulties."

Explanation: The text indicates that surface oil is becoming more competitive as traditional oil sources become scarce, suggesting that it is gaining popularity despite the challenges in its extraction process.

Option 1: "The quality of the oil obtained is lower than conventional oil."

Explanation: The text does not state that the quality of surface oil is lower than conventional oil. Instead, it focuses on the extraction process and the challenges involved, without making a direct comparison of quality.

Option 3: "Collection is straightforward because it lies near the surface."

Explanation: The text describes the extraction of surface oil as complicated and requiring significant machinery and heating, which contradicts the idea that collection is straightforward.

Option 4: "It is ruined by contact with other elements such as sand."

Explanation: While the text mentions that bitumen mixes with sand and clay, it does not imply that this contact ruins the oil. Instead, it highlights the complexity of mining due to these elements.

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