The length of time required for half of the radioactive atoms in a sample to decay is its <span>half-life. The correct option among all the options that are given in the question is the first option or option "A". The other choices are incorrect and can be easily neglected. I hope that this is the answer that has come to your help.</span>
Your answer is radio waves
Acid of x bottle is highly reactive because solute is more and acid of y bottle is less reactive because solvent is more.
