Listen to part of a lecture in a geology class.
- What is the lecture mainly about?
- A. Efforts to increase the production of petroleum and natural gas
- B. Problems associated with the refining of dead oil
- C. Recent improvements in methods used to locate petroleum
- D. Background information essential to understanding the petroleum industry
- According to the professor, why does the petroleum industry search for crude oil and natural gas at the same time?
[CHOOSE 2 ANSWERS]
- A. Both tend to be located together.
- B. The industry can profit by exploiting both.
- C. Natural gas is used to refine crude oil.
- D. Natural gas is used to operate crude oil pumps.
- According to the professor, why does the petroleum industry usually look for petroleum under the ocean or near the shore?
- A. Petroleum often rises to the surface of the water, where it can be easily seen.
- B. Petroleum was formed from ocean plants and animals.
- C. Water pressure from the ocean prevents petroleum from leaking away.
- D. Oil drills can easily penetrate the ocean floor.
- According to the professor, what determines the difference between live and dead oil?
- A. The age of the oil
- B. The natural gas content of the oil
- C. The percentage of organic material in the oil
- D. The amount of heat the oil will produce when burned
- Why does the professor mention crude oil that is found in pools?
- A. To point out a common misconception about crude oil
- B. To explain why crude oil must be refined before it can be burned
- C. To describe the state in which most crude oil is found
- D. To support a previous statement about low pressure on crude oil
- Why does the professor say this: 🎧
- A. To clarify the meaning of the word “synthetic”
- B. To demonstrate how important petroleum is in everyday life
- C. To show that the students need to do more research about petroleum
- D. To explain why synthetic fibers have useful characteristics