What do credence mean?

What does acid rain contain most of? How many cubical grains of ordinary table salt eqals one millimeter? How many milliliters will it take to fill a 2.00 L bottle that already contains 1.87 L of water? Is an electric current a movement of electrons at near the speed of light? Where can one find a plastic tool box? How are bats and polar bears different? What are the ways of minimizing the negative effects of mining? What the chemical formula for coo? Do you get water from underground springs? What is the process called of removing an oh and h? What is the disadvantage of squamous tissue? How many planets are their in solar system? How can you ground a porcelain light fixture with no ground screw and not mounted in a metal box or do you even have to if not what do you do with ground wire? When does the color change in a leaf indicate physical change and when dos it indicate chemical change? What inhibitor has a structure similar to the substrate? What is nature of water cycle water is? How many atoms does the phosphorus atom connect to? Suggest a reason for the great variability seen in the structure of pollen grains? Is punch made from powdered mix a solution? What is the hazard symbol for universal indicator?