Overall, our planet reflects about 30% of the sunlight that strikes it. Bright white clouds are responsible for reflecting a lot of sunlight back into space before it ever reaches Earth's surface. In this investigation, however, we'll focus only on sunlight that actually reaches the surface, and on how that solar energy is reflected or absorbed by different types of land cover.

  !    Click the red dots to see examples of land cover on Earth's surface. Consider how much sunlight is reflected from each surface.

2. Rank the four images in order of how much sunlight each reflects, starting with the largest amount of reflected light.