Tornadoes typically form with:
a. strong vertical wind shear

b. a conditionally unstable environment.
c. severe thunderstorms.
d. All of these choices.


d

Environmental & Atmospheric Sciences

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When action is a boy pulling on a spring, reaction is the

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Which of the following is true of the receptor site for amino acid neurotransmitters?

A) All amino acids have a common receptor site. B) Each amino acid has a single unique receptor site. C) There are four different types of receptor sites corresponding to the four different types of side chains on the amino acids. D) None of the above is true.

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Which type of breaker forms when the ocean bottom has an abrupt slope?

A) Plunging breaker B) Spilling breaker C) Standing breaker D) Surging breaker E) Swelling breaker

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Ice cores from Antarctica span hundreds of thousands of years of time. Indicate whether the statement is true or false

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