The process that uses a half-life in its computation is a. radioactive dating. b. intrusion c. adaption

The softest and hardest minerals are: softest hardest

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive