At a regional airport with an elevation of 29 meters below sea level, the observed station pressure is 1031 mb.

Using the equations presented in the activity, mb must be the station pressure to correctly determine the sea level pressure value in mb.
Group of answer choices

10.31 mb, added to

2.9 mb, subtracted from

10.31 mb, subtracted from

2.9 mb, added to

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare