:-) :-) :-) :-) :-) :-) :-) :-) :-)

the second one. the higher the wave and the closer they are together, the higher the frequency

not sure if this what   you'r looking for would be percent composition

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.