Which term accurately describes the following statement "Filters protect against the adverse health effects from nicotine use."

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.