Why has bioremediation become popular?
A. To clean up spilled oil.
B. To clean up the ozone layer.
C. To create cleaner farming techniques.
D. All of the above.
E. None of the above.
As the article states in lines 5-7, “Since the late 1980s when it was recognized by the U.S. EPA as a viable petroleum clean-up method, bioremediation has grown into a major segment of the American environmental remediation industry.”