Question

6 - demonstrates basic knowledge of topic (answers question with minimum information)
8 - demonstrates advanced knowledge of topic (answers question with detailed information)
10 - demonstrates mastery of topic (answers question with in depth information)
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question 3
3 pts
a faint glow of light that fills the universe, falling on earth from every direction with nearly
uniform intensity is called?
spectral lines
star dust
cosmic microwave background radiation
all of these

Explanation:

• Spectral lines are specific wavelengths of light emitted or absorbed by atoms and molecules, not a uniform glow filling the universe.
• Star dust refers to small particles in space, not a light glow.
• Cosmic Microwave Background Radiation (CMBR) is a faint glow of light that fills the universe, falling on Earth from every direction with nearly uniform intensity. It is a remnant of the Big Bang.
• Since only CMBR fits the description, "All of these" is incorrect.

Answer:

Cosmic Microwave Background Radiation