Here's the matching of the ways that Islamic scholars preserved knowledge and contributed to knowledge:
Preservation | Contribution
------------------------------------------------- | -------------------------------------------------
translation of Greek and Roman texts | new way to measure latitude and longitude
libraries | encyclopedia of medical science
| algebra
This organization reflects how scholars in the Islamic Golden Age both preserved existing knowledge through translation and libraries while also contributing new insights and fields of study, such as mathematics (algebra) and advancements in navigation and medical knowledge.