A valid hypothesis must be capable of being proved

A. right beyond doubt.
B. wrong.
C. sort of right.
D. by other investigators.


Answer: B

Environmental & Atmospheric Sciences

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Russians called the Kazan Tatars the _______ ________, after the brightly colored tents in which they lived

Fill in the blank(s) with correct word

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Isoline maps connect data points that have equal value

Indicate whether this statement is true or false.

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Which element is the world's lightest metal and increasingly a vital component of batteries used in small electronic devices?

A. lithium B. mercury C. iron D. lead E. silver

Environmental & Atmospheric Sciences

Today, what region of Europe is relatively more prosperous than other regions of Europe?

A) northeastern Europe B) northwestern Europe C) southeastern Europe D) southwestern Europe E) All of the above are equally prosperous

Environmental & Atmospheric Sciences