If the speed of light is 1.5times that of the speed of light in a given material what is the index of refraction for that material

The air that we breath is made mostly of which gaseous molecule

By what primary heat transfer mechanism does the sun warm the earth?

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i