Outline the factors that create global surface circulation patterns and describe the patterns created
Where are the cold water currents and where are the warm water currents? How does this moderate
Earth’s temperature? What will be an ideal response?
Surface currents move east-west with the global wind belts. When they run into a continent they are
deflected by Coriolis effect to the right in the Northern Hemisphere and to the left in the Southern
Hemisphere. This creates a set of gyres in the Atlantic, Pacific and Indian oceans. Cold water currents
begin in the polar regions, move toward the equator, then turn along the equator. The sunshine warms
them so that when they move back toward the poles they are warm. These currents bring warmth to the
cooler areas and coolness to the warmer areas, moderating global temperatures.
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What is considered to be the densest type of crust?
a. Basalt b. Continental crust c. Granite d. Andesite
Which of the following notations corresponds to the fatty acid with the highest melting point?
A) 18:0 B) 18:1 C) 18:2 D) 18:3
If a geographer wanted to use a geographic information system (GIS) to study soil contamination and determined that only the areas within 1.5 kilometers of a toxic waste dump needed to be considered and mapped, he/she would most likely choose. Which type of GIS function?
A) Buffering B) Kriging C) Area calculation D) Point-pattern analysis
Middle latitudes typically have easterly winds
Indicate whether the statement is true or false