The correct answer is:
A. Density
True, if you have rough surface the more friction you have. The More slipery, less friction.
Answer:A
Explanation: because The nucleus directs all of the cell's activities, including reproduction.
Answer: Imidogen
Explanation: I just looked it up.
The alpha particles that were fired at the gold foil were positively charged. ... These experiments led Rutherford to describe the atom as containing mostly empty space, with a very small, dense, positively charged nucleus at the center, which contained most of the mass of the atom, with the electrons orbiting the nucleus.
hope this helped
