Which of the Following Statements About the Cosmic Background Radiation

question 29

Multiple Choice

Which of the following statements about the cosmic background radiation is not true?

• A)It had a much higher temperature in the past.
• B)It was discovered by Penzias and Wilson in the mid- 1960s.
• C)It has a temperature of about 3 degrees K above absolute zero.
• D)It appears essentially the same in all directions (it is isotropic).
• E)It is the result of a mixture of radiation from many independent sources, such as stars and galaxies that formed within the first billion years of the Big Bang.

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Definitions:

Conventional Morality

A stage of moral development where an individual's sense of morality is largely driven by the approval of others, adherence to rules, and maintaining social order.

Overregularization Error

A language development mistake where children apply grammatical rules too broadly, leading to errors.

Private Speech

Self-directed speech that children use to guide their behavior.

Logical Extension

A development or conclusion that naturally follows from the premises or conditions that preceded it.