Who is the presiding officer over the Senate?

Small plane just crashed in your neighborhood. you take a fire extinguisher and blankets to the scene, then stand back and silently gather with others on the scene when you realize there is nothing you can do to . in this situation, gathering quietly with others out of reverence and respect is an example of coping.

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

If a swimmer is traveling at a constant speed of 0.85 m/s,how long would it take to swim the length of a 50m olympic sized pool?