Which oceanic region is known for deep-water upwelling and high levels of biological productivity due to turbulence
and weak stratification?
a. The tropical ocean
b. The Northern Atlantic ocean
c. The temperate ocean
d. The southern polar ocean
e. The northern polar ocean
d
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Water masses in the ocean are layered based on their ________
a. temperature b. density c. gas content d. salinity
Every year, according to Costanza's research, the earth provides you and every other person in the world with ecosystem services worth at least ____ on average.
A. $170 B. $1,700 C. $17,000 D. $170,000 E. $1.7 million
The island of Honshu is an example of a volcanic island associated with volcanic activity at a ________
A) hotspot B) island arc C) mid-ocean ridge D) transform fault E) rift valley
Which of the following best describes the foreshore of a beach?
A) It is the active zone of the beach that is washed by waves during the daily rise and fall of the tides. B) It is highest part of a beach. C) It is the part of the beach that has windblown dunes and grasses. D) It is the area below the low-tide mark, where wave action, turbulent backwash, and longshore currents excavate a trough.