Briefly describe the different ways that ocean currents are measured
What will be an ideal response?
Ocean current measurements consist of measurements of velocity and direction and velocity for surface and subsurface current flow. Both surface and subsurface currents can be measured directly or indirectly. Direct methods of ocean currents are floating devices that are can be tracked over time or fixed devices. Indirect methods consist of determining the internal distribution of water density and the corresponding pressure gradient, radar/satellite altimeters to produce dynamic topography maps, and Doppler flow meters to determine subsurface water movement.
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Which process most accurately describes the process of water moving from a liquid state in a plant leaf to a gaseous state in the atmosphere?
A. transpiration B. capillary action C. precipitation D. hydrolysis
Canada's vast northern regions are almost empty of population but are exploited for all of the following EXCEPT
A) agriculture. B) mineral resources. C) timber resources. D) hydroelectric power.
Which is not a regional name for a wash or gully?
A) Nullah B) Donga C) Wadi D) Gibber E) Coulee
Rather than freely spreading, if the lava piles up close to the vent resulting in a structure that is steep-sided and compact is called a
A. lava dome. B. plutonic dome. C. volcanic basin. D. volcanic dome.