In five half-lives, one-sixteenth of a radioactive substance will remain. Indicate whether the statement is true or false
F
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Buddhism has three distinct traditions. Which of the following was the dominant tradition when Buddhism was accepted into East Asia?
A. Mahayana B. Vajrayana C. Theravada D. Dalai Lamaism
Evaporite deposits such as borates formed as a result of the drying up of large pluvial lakes in the western United
States. a. True b. False
Which of the following is NOT part of the definition of a desert?
a. high temperatures b. mean annual rainfall of less than 25 centimeters per year c. capability to evaporate more water than falls as precipitation d. incapable of supporting abundant life e. sparse vegetation
The theory of plate tectonics proposes that the _____ float on the Earth's _____.
A ) spreading centers, core B ) plates, asthenosphere C ) plates, magnetosphere D ) supercontinents, crust