a fragment of rock from a meteorite was measured to have 1/16th of the original potassium-40 than it originally contained. Since the half life for potassium-40 is 1.277 billion years, how old is that meteorite

In a economy individuals answer the three basic and the central authority or leaders have little say in the economy.

The great scientist alfred wegener proposed that continents have moved, while other scientists such as t.c.chamberlin argued against wegener. wegener's ideas eventually won, and are now widely accepted, because: a) wegener's ideas were more beautiful, and so were favored by the intellectual elite.b) wegener's ideas did a better job of predicting the results of new observations and experiments.c) wegener's ideas appealed to dead white european males, whereas chamberlin's didn't.d) wegener's ideas appalled dead white european males, and we all know that in this politically correct era,dead white european males cannot get a fair shake.e) wegener won the nobel prize.

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan