ON THE REFERENCE TABLE, WE CAN SEE CARBON 14 AND ITS HALF-LIFE AS MENTIONED, IF WE START WITH 100% OF THE INITIAL RADIOACTIVE CARBON-14 IN A SAMPLE, AFTER THE 1ST HALF-LIFE 50% IS STILL ...

This year’s Earth Science Regents exam has caused quite a stir among students across New York state, who say the tests had several questions unrelated to the curriculum.