An object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by an unbalanced force is known as which Law
of Motion?

When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.