Answer:
are you still looking for an answer?
Explanation:
because if you are i could give it to you. K?
The cloud chamber, the Geiger counter, and a piece of
photographic film can all reveal the presence of radioactivity.
Batteries don't.
Answer:
i say amen to that brother a big amen
Answer:
True.
Explanation:
Hypotheses are supposed to be tested, to be proven correct. They usually start from a small thought without 100% correct, but as you do further testing, they become stronger.