What is essential in the restoration and continuation of photosynthetic productivity in the ocean?

a. Upwelling
b. Blooming
c. Light
d. Carbon dioxide


ANS: A
The upwelling of deep water returns nonconservative nutrients to surface waters. Information can be
found in the section Lack of Nutrients and Light can limit Primary Productivity.

Environmental & Atmospheric Sciences

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Indians living abroad make up the:

A) working class B) Indian diaspora C) Indian egress D) Indian traders

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Hurricanes, flooding, and fire are examples of disturbances that result in secondary succession.

Answer the following statement true (T) or false (F)

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Construction of a breakwater produces the same effect as what kind of natural coastal structure?

A) a spit, formed by sand moving by longshore drift accumulating along the opening of a tidal channel B) a barrier island, which forms an artificial beach at the front of the breakwater C) an island offshore breaking waves and trapping sand behind to form a tombolo D) a sea cliff producing erosion at the base of the sea cliff (i.e. breakwater)

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As more disorder occurs in a system, entropy

A. decreases. B. increases. C. remains the same. D. none of the above

Environmental & Atmospheric Sciences