Answer: 
The units used to measure distances between parallels and between meridians are degrees, minutes, and seconds.
Explanation: 
- The distance between two far-away latitudes or two far-away longitudes can be broadly measured in degrees. 
- In order to pinpoint any two locations lying across two different latitudes or longitudes, the distance can be tracked down to minutes and seconds. 
- The distance between two closest latitudes or two closest longitudes can only be measured in minutes and seconds because they would be placed only 59 minutes and 59 seconds apart.