What Is the Cosmic Microwave Background Radiation

question 216

Multiple Choice

What is the cosmic microwave background radiation?

• A) uniform background of radiation from electrons spiraling in weak intergalactic magnetic fields
• B) radiation left over from the Big Bang after the universe expanded and cooled
• C) almost uniform background of radiation from distant, unresolved, overlapping galaxies
• D) radiation from a very tenuous, ionized gas that fills the universe equally in all directions

---

Definitions:

Abbreviation

The process or result of shortening a word or phrase by omitting letters or using symbols.

Invasive

A procedure or disease that enters or affects the body by entering or cutting skin or by entering through a body cavity.

Rights-Based Argument

An argumentation approach that is grounded on the assertion of rights, emphasizing moral or legal entitlements and obligations.

Power-Based Approach

A strategy in negotiations or decision-making that relies on leveraging one's power or authority to influence outcomes.