Which of the following is not an advantage of using conventional crude oil as an energy source? a. ample supply for several decadesb. low land disruptionc. efficient distribution systemd. environmental costs included in market pricee. high net energy yield

The correct answer is letter "D": environmental costs included in market price.

Explanation:

Oil and other resources like natural gas are used as fuel and energy sources. However, the environmental cost of extracting them is not included in the market price. If that would happen, prices of those sources would not be accessible to regular consumers.  

The exploitation of oil emits methane which is a gas even more harmful to the environment than carbon dioxide. Governments in most cases regulate the oil exploitation considering the environmental impact of that activity.

answer; i do believe that the correct answer is ; ///are valued more highly than their cost;