Which of the following is CORRECT regarding the geologic time scale?
A) We live in the Tertiary period.
B) Over 87 percent of Earth's history has elapsed during the more recent Cenozoic, Mesozoic, and Paleozoic eras.
C) The bulk of Earth's history has occurred during the Precambrian eon.
D) The Jurassic period occurred during the Paleozoic era.
C
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The balloon effect refers to how eliminating drugs in one geographic area reduces the sale of drugs in all areas, effectively "bursting" the drugs out
a. True b. False Indicate whether the statement is true or false
The average annual precipitation for the earth is equal to the annual amount of evaporated water
Indicate whether the statement is true or false
A catalyst speeds up a chemical reaction as a result of which of the following?
A) It increases the number of collisions between reacting molecules. B) It makes the reaction more endothermic. C) It makes the reaction more exothermic. D) none of the above
The tsunami warning system in the region of the 2004 tsunami
A) failed B) did not exist C) saved many lives D) gave inaccurate information