Explain the different characteristics of western and eastern boundary currents
What will be an ideal response?
The flow in the western part of the gyre is confined to a narrow path with a fast-flowing current (a western boundary current), which in the east is more diffuse, spread over a much larger area and with much-reduced current speeds (an eastern boundary current). Eastern boundary currents also tend to be divergent; the Ekman transport is away from the continent, thinning the surface layer along the coastline. The thinner surface layer and the divergent flow promote upwelling in these regions.
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Extratropical cyclones form between which two types of atmospheric cells?
A) Two Hadley cells B) A Hadley cell and a Ferrel cell C) A polar cell and a Hadley cell D) A polar cell and a Ferrel cell
Think of ways that a geographer could contribute to a research project in your community
What will be an ideal response?
When radioactive isotopes decay they emit radiation that is harmful to humans. Which of the following forms of radiation have the highest energy and ability to penetrate solid materials?
A. gamma rays B. ultraviolet waves C. beta particles (electrons) D. microwaves E. alpha particles (helium nuclei)
Today more people now live in cities than in rural areas.
Answer the following statement true (T) or false (F)