Explain why bridges have expansion joints in

Bridges are made of steel. This means that they expand and contract depending on he weather. If there were no expansion joins installed, the bridge would fall apart due to not being able to move.

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral