It is most likely a coolant (antifreeze)
Answer
people who speak four or more languages are generally just referred to as multilingual
Explanation:
Regular reflection
1. In regular reflection the reflected light beams are always parallel to the incident light beam.
2. Regular reflection occurs from a nicely polished reflective surface.
Diffused reflection
1. In diffused reflection the reflected light beams are not parallel to the incident light bbeams.
2. It occurs from a diffused or irregular surface.