What is a lingua franca?
What will be an ideal response?
Answer: A lingua franca is a language of international communication. The commonest lingua franca is English. In the past, a lingua franca achieved widespread distribution through relocation diffusion. This is mainly through migration and conquest.
The recent dominance of English is a result of expansion diffusion, the spread of a trait through the snowballing effect of an idea rather than through the relocation of people. The diffusion of English language popular culture, as well as global communications such as TV and the Internet, has made English increasingly familiar to speakers of other languages.
Other contemporary lingua franca languages include Swahili in East Africa, Hindi in South Asia, Indonesian in Southeast Asia, and Russian in the former Soviet Union.
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Emigration
A) refers to a move from a place. B) is the same as gross migration. C) does not involve push factors. D) is equal to the difference between voluntary migration and forced migration.
According to Wien's displacement law, which of the following expressions describes the wavelength at which maximum radiation occurs?
A. The wavelength is inversely proportional to the temperature. B. The wavelength is proportional to the pressure. C. The wavelength is proportional to the temperature. D. The wavelength is inversely proportional to the pressure.
What is our primary evidence of past ice ages?
What will be an ideal response?
Which of the following has the largest percentage of triglycerides?
A) chylomicrons B) HDL C) LDL D) VLDL