Secondary extraction of petroleum ________.
a. occurs immediately after primary extraction
b. is less expensive than primary extraction
c. uses solvents, water, or steam
d. allows the oil to be extracted to the last drop
e. causes less environmental damage than tertiary extraction
Answer: c. uses solvents, water, or steam
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.