Sound travels most quickly through? a gas, liquid. Solid

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

What is the percentage of hydrogen in c2h4