A vibrating system with a high frequency has a
A. short wavelength.
B. short period.
C. both of these
D. none of these
Answer: C
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Which of the following is true concerning lingua francas?
A) They are usually spoken by the elite only. B) Swahili is a lingua franca of East Africa. C) They are all a mixture of different languages. D) They are the official dialect of their respective languages.
Ridges, rifts, and rises are common features along divergent plate boundaries
Indicate whether the statement is true or false
The most recent analyses of polar ice cores have given us the ability to profile global climate change back as far as ________ years
A) 300,000,000 B) 100,000 C) 1000 D) 800,000 E) 50,000
Though 14% of global evapotranspiration occurs over the land, 22% of global precipitation occurs over land, indicating a contribution from evaporation from the world's oceans
Indicate whether the statement is true or false