Explain how air masses are set into motion. You may find the use of drawings helpful
The mechanism is the convection of heat. Air near the ground surface is warmed, becomes less dense and rises, pulling air in from the surrounding region. As the air rises, it cools, and eventually moves outward. It continues to cool until it becomes dense enough to sink. This describes a convection cell.
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?Match the term with the correct description.
A. ?partially decayed plant matter in swamps and bogs B. ?brown coal, low heat content, low sulfur content C. ?soft coal, extensively used as a fuel because of its high heat content and large supplies; normally has a high sulfur content D. ?hard coal, highly desirable fuel because of its high heat content and low sulfur content E. ?mixture of hydrocarbons extracted from shale rock that can be distilled to produce shale oil
Which of the following is(are) associated with a build up of leukotrienes?
A) asthma-like attacks B) fever C) inflammation D) all of these
A local mountain created by volcanism
A. is always accompanied by a regional increase in crustal thickness. B. cannot be a shield-type volcano. C. is always low in elevation and therefore has no need for increase in crustal thickness. D. may be high in elevation but is not accompanied by a regional increase in crustal thickness.
The mind imagery that we use for understanding our surroundings and experiences are called ____
a. open systems b. regions c. mathematical and statistical models d. thresholds e. conceptual models