Author Question: _______________ is a process by which the different hydrocarbons that make up crude oil are ... (Read 31 times)

D2AR0N · **on:** Jul 21, 2018

_______________ is a process by which the different hydrocarbons that make up crude oil are separated.

Fill in the blank(s) with the appropriate word(s).

Question 2

Unconventional oil is petroleum that can be extracted from rocks known as tar sands and oil shale. The worlds largest deposits of tar sands are found in _______________.

Fill in the blank(s) with the appropriate word(s).