Need
discussion: you and your shadow
light can be transmitted through, reflected by, or absorbed by objects. white light contains all the wavelengths of visible light—all the colors of the rainbow. your eyes are able to determine colors of objects due to the absorption of certain wavelengths of light by those objects.
how is your shadow proof that light travels in a straight line?
how does use of a prism work and how does it prove that white light combines all the wavelengths (and colors) of visible light?

Explanation:

1. If light did not travel in a straight line then the light would just bend around the body that is suppose to be making a shadow and no shadow would be observed.

2. These colors are often observed as light passes through a triangular prism. Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

i belive it is water