How are weather observations shared and distributed among different nations?
The World Meteorological Organization (WMO), which includes more than 175 nations is responsible for the international exchange of weather data. The WMO certifies that the observation procedures do not vary among nations so that they may be comparable. Weather information is transmitted electronically to government meteorological centers around the world, including the U.S. National Weather Service (NWS) and the National Center for Environmental Prediction (NCEP), where the weather data is analyzed and prepared for distribution to private forecasting firms and public agencies.
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A. no horizontal forces act. B. the sum of the forces on the ball equal zero. C. the ball will move indefinitely. D. friction acts on the ball.
What is the value, to a species, of having genetic diversity?
What will be an ideal response?
Juche is a young religion confined to
A) Vietnam. B) Laos. C) North Korea. D) South Korea. E) Taiwan.
Which of the following statements about ethanol is true?
A. Corn-based ethanol has a high energy returned on investment (EROI) value. B. We can supply all of the automotive fuel used in the United States if we just double ethanol production. C. We can easily grow enough corn ethanol and supply the world's food needs. D. Growing corn for ethanol requires substantial inputs of fossil fuel energy.