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A major barrier preventing more widespread use of biodiesel is/are .
Radiology
A medical discipline that uses imaging technologies such as X-rays, CT scans, MRI, and ultrasound to diagnose and sometimes treat diseases.
Radioactive Substances
Materials that emit radiation, which is energy in the form of particles or waves, as a result of the decay of atomic nuclei.
X-rays
A form of electromagnetic radiation that can pass through most objects, including the body, used mainly for diagnostic imaging in medicine.
Diseases Disorders
Medical conditions characterized by abnormal functioning of the body or mind.
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