Parts of Speech for Optical astronomy
op·ti·cal as·tron·o·my
O o Gramatical Hierarchy
Grammatically "Optical Astronomy" is a noun. But also it is used as a .
All about optical astronomy Download all about optical astronomy in pdfGrammatically "Optical Astronomy" is a noun. But also it is used as a .
All about optical astronomy Download all about optical astronomy in pdf