Most of the ocean is divided into __________ horizontal depth zones based on density, and known as __________. 2. . . . photic z
one and aphotic zone 4. . . . shelf, slope, rise, and abyssal 3. . . . mixed layer, pycnocline, and deep layer 2. . . . wind-driven layer and thermohaline layer
The Open Door Policy is a name in foreign affairs preeminent
used to stand to the US policy set up in the late nineteenth century and the beginning
of twentieth century, as articulated in Secretary of State John Feed's Open Door
Note, dated September 6, 1899 and exchange to the significant European forces.
