In West Africa, French is a language that is used throughout a wide area for commercial or political purposes by people with different native tongues. French is an example of a(n):
A) culture hearth
B) ethnic language
C) universalizing language
D) lingua franca
D
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The atmospheric greenhouse effect is due primarily to the fact that ___
A) oxygen and ozone absorb ultraviolet radiation B) nitrogen and oxygen transmit visible radiation C) cloud formation releases latent heat energy D) carbon dioxide and water vapor absorb infrared radiation
Which statement about India's resource and environmental problems is false?
A. India has 18% of world's people, but only 2.3 % of world's land resources. B. About one-half of India's cropland is degraded. C. About two-thirds of its water is seriously polluted. D. India has about 15% of the world's forests. E. Sanitation services are often inadequate.
Water and soil percolating through karst fissures can create a small depression through the process of _______________
Fill in the blank with correct word.
You are monitoring a seismograph in Seattle. One morning, your instrument records an earthquake approximately 2000 km away. From that information, can you determine where the earthquake occurred?
A) Yes, because seismographs can indicate direction as well as distance. B) Yes. You could take the distance and match it up with known fault lines to find the epicenter. C) No, because seismographs can't pick up earthquakes from that far away. D) No, because you would need information from more than one seismograph to plot the epicenter.