Rank the measurements in order of increasing pressure.

4 kpa, 16 n/m2, 311 n/m2, 0.3 pa

16 n/m2, 311 n/m2, 0.3 pa, 4 kpa
4 kpa, 16 n/m2, 311 n/m2, 0.3 pa
4 kpa, 311 n/m2, 16 n/m2, 0.3 pa
0.3 pa, 16 n/m2, 311 n/m2, 4 kpa

For the answer to the question above.
The pressure (the symbol "P") is the force per unit area applied in a direction perpendicular to the surface of an object.
This is from least to greatest: 0.3Pa, 16 N/m2, 311 N.m2, 4kPa