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Questions and Answers
What is the atmosphere mostly composed of?
What is the atmosphere mostly composed of?
- Water drops
- Dust particles
- Ice
- Gas (correct)
What happens when light from the sun moves through the atmosphere?
What happens when light from the sun moves through the atmosphere?
- The light becomes dimmer
- Blue light is separated from the other colors (correct)
- The light scatters in all directions
- The light changes color
Which color is mentioned as having the smallest size in the text?
Which color is mentioned as having the smallest size in the text?
- Green
- Violet
- Blue (correct)
- Red
What happens to the blue light when it hits the inside part of a gas?
What happens to the blue light when it hits the inside part of a gas?
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What are all the colors that the human eye can see in white light?
What are all the colors that the human eye can see in white light?
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Study Notes
Composition of the Atmosphere
- The atmosphere is mostly composed of nitrogen (about 78%) and oxygen (about 21%).
Interaction of Sunlight with the Atmosphere
- When light from the sun moves through the atmosphere, it is scattered in all directions.
Properties of Light
- Violet light has the smallest size (wavelength).
- When blue light hits the inside part of a gas, it is scattered more than other colors.
Human Vision
- The human eye can see seven colors in white light: red, orange, yellow, green, blue, indigo, and violet.
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