[Solved] The transparent covering of the front of the eye is the A) cornea. B) lens. C) iris. D) fovea centralis. E) pupil. Condenser: An apparatus or device used in laboratories or industrial applications for condensing vapors, typically part of a cooling system or used in distillation processes. Optical Microscope: An instrument that uses visible light and lenses to magnify objects, allowing for the observation of small details that cannot be seen by the naked eye. Focus Control: The adjustment or regulation of the clarity and sharpness of an image in photography or optics. Sterilization: The destruction of all microorganisms, including bacterial spores, by specific means.