Hello! Your image isn't quite showing up, so this answer could be either the International Date Line, or the Prime Meridian. I'll edit this post as soon as I'm able to see the image. Where is the line located relative to the picture? Is it in the middle going down vertically? Or is it at the edge of the map.
Answer:
D. The water reflects U.V rays, adding to exposure.
Explanation:
This is true because water reflects light, which contains UV. When UV is reflected it is magnified by 25%.
Answer: Lake Michigan
Explanation: Except for Lake Michigan, the lakes provide a natural border between Canada and the United States, a frontier that was stabilized by a boundary-waters treaty of 1909.