The light intensity at a distance of 10.0 meters from a light source is 10 mW/m2. What would be the light intensity at a distance of 20.0 meters from the light source?

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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a is the best answer your welcome