Oil as an energy source has all of the following disadvantages EXCEPT a. the loss or degradation of habitat if a leak develops in the pipelines used to transport oil b. depending on consumption, proven and unproven oil reserves could last more than 100 years c. the possibility of accidents on offshore platforms, which could pollute water from oil spills and pollute air from fires d. OPEC controls much of the world's crude oil and is therefore able to control the price of oil