Which of the Following Best Explains Why Carbon Dioxide Emissions

question 4

Multiple Choice

Which of the following best explains why carbon dioxide emissions are so much higher using tar sands compared to conventional crude oil?

• A) tar sands require additional energy to produce.
• B) tar sands contain carbon dioxide trapped within the sand.
• C) tar sands are found at higher latitude and naturally contain more carbon dioxide.
• D) oxygen within tar sands readily combines with the carbon.
• E) tar sands naturally contain water.