A glacial landform that forms at the head of glacial valleys or troughs is called a(n):
a. horn.
b. esker.
c. kame.
d. arête.
e. cirque
E
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The best way to avoid the evolution of pesticide resistance is to
A) use more of the pesticide anytime resistance appears. B) use crop rotation and biological controls instead of pesticides. C) develop new forms of pesticides. D) apply pesticides to the soil before planting and after harvesting a crop.
What is an example of a negative impact of urban sprawl in the United States?
A. decreased need for highways B. an increase in federal support for farmland preservation C. increased cost of food D. loss of tax base and deteriorating infrastructure in inner city areas
Which of the following is NOT true regarding language families?
A) Turkish is the most widely spoken Altaic language. B) Migrants from Russia's Ural Mountains carried the Uralic language to Europe. C) Arabic and Farsi are considered the same language. D) More than 95 percent of the population of Sub-Saharan Africa speak Swahili, Yoruba or Igbo. E) Quechua speakers are largely found in the Andean regions of South America.
The red-shift is an example of the Doppler effect. Indicate whether the statement is true or false