Why Is the Cosmic Background Radiation Found Primarily in the Radio

question 13

Multiple Choice

Why is the cosmic background radiation found primarily in the radio part of the spectrum?

• A)The visible part of it was absorbed by intergalactic dust
• B)It was emitted by cool,intergalactic clouds
• C)It is primarily synchrotron radiation
• D)It is highly redshifted

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Definitions:

Risk Aversion

The preference to avoid uncertainty and risky situations, often influencing economic and financial decisions.

Adverse Selection

The case in which an individual knows more about the way things are than other people do. Adverse selection problems can lead to market problems: private information leads buyers to expect hidden problems in items offered for sale, leading to low prices and the best items being kept off the market.

Moral Hazard

The situation that can exist when an individual knows more about his or her own actions than other people do. This leads to a distortion of incentives to take care or to expend effort when someone else bears the costs of the lack of care or effort.

Risk Aversion

The tendency to prefer certainty over uncertainty, avoiding risk in decision-making or preferring safer investments.