When checking for non-condensables inside a recovery cylinder known to contain only one refrigerant, why should the technician allow the temperature of the cylinder to stabilize to room temperature before taking a pressure reading?

Restricting immigrants from entering a country may be based on what belief?  

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.

The second westward surge reached the: mississippi river, appalachian mountains, oregon territory