Can I Safely Delete Primary/Basic Data Partitions?

I have multiple "primary partitions" and "basic data partitions" with no letter paths and no data on them. They are all roughly 500mb. I believe they were created as accidental byproducts of restoring disk data and partitions; however, I am not certain. Is it safe to delete these volumes and combine them with my main partition which is in use?

EDIT:

I assigned the volumes letters and every one of them showed that they stored data in the properties page. They did not have any files in file explorer though, so I used Windows Directory Statistics to see if the volumes did actually contain data. It turned out that two of them had recovery data and one of them had recovery data plus $RECYCLE.BIN and System Volume Information. My question now is, do I need these additional recovery volumes? The partition manager doesn't recognize them as such and both drives containing them have their own true recovery volumes. They seem sort of pointless, but is it safe to delete them?