Question

URGENT WILL GIVE YOU 20 POINTS AND BRAINLIEST ANSWER

Answer 1

Reduce the chance of errors in coorespondence 
Easier to use for converting between units while measuring 
Make communication easier between scientists comparing data

Answer 2

The three to select would be:
1) Reduce the chance of errors in correspondence.
2) Easier to use for converting between units while measuring.
3) Make communication easier between scientists comparing data.
 I hope I helped, and good luck!~