Astar that is moving toward an observer has its visible light shifted toward which end of the spectrum? a. blue b. red c. yellow d. white

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?