In the near future, the world is unlikely to exhaust its usable oil supplies because it is possible to use more unconventional heavy oil from depleted oil wells and other sources. Increasing the use of heavy oil will likely result in ________, among other consequences.
A) considerable unpredictability in the oil supply
B) reduced environmental impacts
C) lower net energy yields
D) greater technological input
E) reduced risk of climate change

Question

Quizplus · Accepted Answer

Heavy oil has a lower net energy yield, which means that more energy is required to extract and process it, resulting in higher costs and lower energy efficiency. This can make it a less desirable option compared to conventional oil.

In the near Future, the World Is Unlikely to Exhaust