Dry air is 78.08% nitrogen, 20.95% oxygen and 0.93% argon with the 0.04% being other gases. If the atmospheric pressure is 760.0 torr, what is the partial pressure of nitrogen in dry air?
A) 78.08 torr
B) 166.6 torr
C) 593.4 torr
D) 760.0 torr
C
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Tides are the hourly changes in the elevation of the ocean surface.
a. true b. false
Which type of estuary is characterized by the least variation in salinity with depth at any given point along its axis?
A. a well-mixed estuary B. a salt wedge estuary C. a partially mixed estuary D. a fjord E. None of these is correct; it is impossible to tell from the information given.
How deep would the affects of this wave likely reach?
A. 2 B. 3 C. much deeper than 3 D. 1 E. only on the surface