Answer: high iridium levels in a 66- million-year-old clay layer in Denmark and Italy
Explanation:
Answer: Fluorine
Explanation: It belongs in the same group as Bromine
Answer:
The correct answer is A
Explanation:
That water stops moving once it gets to the dam and turns into potential energy
A barometer measures atmospheric pressure.
Democritus *suggested* the existence of the atom, that everything was made up of tiny particles, but wasn't really able to get more specific than that. Dalton also theorized that everything was made up of indivisible particles, but went further basing his theory on actual scientific principles, such as the Law of Conservation of Mass and the Law of Constant Composition. He also said that atoms weren't created or destroyed in a chemical reaction, just rearranged. There's more to it than that, but basically, Dalton's theory was based more on science while Democritus' theory was too general to be useful in chemical situations.
