San Francisco's characteristic cold and foggy weather during the summer is caused by a ____
A) cold eastern boundary current
B) warm eastern boundary current
C) cold western boundary current
D) warm western boundary current
A
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At what depth do gas bubbles have the most effect on magma?
A) When the magma first forms, before the bubbles can dissolve into the magma B) At moderate depths, when the magma is moving rapidly through the conduit C) At very shallow levels, such as within the volcano D) None of these are correct.
In the classical view of the economic system in this figure, we expect businesses to prosper when
A) labor costs are low and household incomes rise. B) demand for goods and services decline. C) labor is in short supply and consumption is declining. D) the value of land and resources increase.
____________________ lakes evaporate and disappear only to reappear when rain provides adequate inflow
Fill in the blank(s) with correct word
Major fisheries are concentrated in the neritic zone (above the continental shelf) because of all of the following except ________
A) there are rapid changes in oxygen concentrations, temperature, and salinity that encourage diversity B) nutrients wash in from land C) the sea bottom provides shelter and habitat D) there is an abundance of sunlight to support photosynthesis