10 points ! sunlight is slowed most when traveling through question 21 options: a. water. b. a vacuum. c. the atmosphere. d. none of these, as light always travels at the same speed.

The answer to this question would be: A. Water

The speed of light will be decreased when it moves in a media that has a higher index of refraction. In the atmosphere, the light is move inside air. When light moves inside water, it will be slower than when it moves in the atmosphere because water index of refraction is 1.33 times of air. 
Pencil looks like bent when you put on water is an example of what happens by the difference of index of refraction.

Yesbyes h2yhh8 id thr answer to your wuestiob

Change of state has wrong energy change - option 2

brian made this table to organize his notes on changes of state. depostion is a change of state that has the wrong energy change listed. it is utilized to collect data as a portion of the development means and in restricted conditions which may be applied at test.

a deposition in the authority of the united states or research for development in the authority of canada includes the catching of affirmed. the out-of-court verbal assertion of a spectator that may be lessened to a printed record for succeeding application for discovery purposes.