Even if distinctive features that might indicate a tornado are observed on radar, a tornado must be observed visually before a tornado warning is issued
Indicate whether the statement is true or false
False
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The largest dune field in North America is located in the Great Plains and is called what?
A) The Nebraska Sand Hills B) The Clovis Dunes C) The Ogallala Sand Hills D) The South Dakota Dunes
Consider the various frequencies of the three photons emitted from the following three individual electron transitions in the figure below: n = 3 to n = 2; n = 2 to n = 1; n = 3 to n = 1. These transitions would produce three spectral lines in a spectroscope. If the energy spacing between the levels were equal, would this affect the number of spectral lines?
A. Yes, two otherwise separate lines would converge into a single more intense line. B. No, but some would then require a prism in order to be seen. C. No, but the spacing between the spectral lines would change. D. Yes, two otherwise separate lines would converge into a single less intense line.
In which country of East Asia has Confucian philosophy had the LEAST influence?
A) Taiwan B) China C) North Korea D) South Korea E) Japan
Bioremediation has been particularly effective in marine ecosystems in the clean-up of ________
A) heavy metals B) hydrocarbons C) nitrates D) pesticides E) thermal effluents