Answer:
Heating a substance increases the speed at which molecules move.
Explanation:
Answer:
half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive ...
Explanation:
braniest
I would say A but then again im not too sure so hope that makes it easier to somehow
