Final answer:
When 'GLAAS' is viewed through a compound microscope, it would appear inverted and reversed as 'SAALG' due to the inversion effect caused by the microscope's objective and eyepiece lenses.
Step-by-step explanation:
A compound microscope is composed of two lenses: an objective and an eyepiece. The objective forms a larger image of the object, which serves as the object for the eyepiece. The eyepiece then further magnifies the image.
When viewing the word 'GLAAS' through a compound microscope, the image will appear inverted (upside down) due to the optical properties of the lenses. The objective lens will form the first image, which will be larger than the actual word. This first image will serve as the object for the eyepiece lens, which will create a final magnified image.