Some isotopes, however, decay slowly, and several of these are used as geologic clocks. Dating rocks by these radioactive timekeepers is simple in theory, but the laboratory procedures are complex. <span>All methods rely on the fact that certain elements (particularly uranium and potassium) contain a number of different isotopes whose half-life is exactly known and therefore the relative concentrations of these isotopes within a rock or mineral can measure the age.</span>
Homeostasis it is an organism's ability to keep a constant internal environment.
Answer: 37.2 trillion cells
UNVY-A is supoorted by other things u dint need more chemicals
Answer: D) Chemical Reaction A will have a higher reaction rate because its container has more thermal energy. This thermal energy will cause an increase in the motion and collisions of the reactants' particles.
More heat = more reaction
Explanation: took the test got it right.
