Which of the Following Is Not Consistent with Recent Observations

question 67

Multiple Choice

Which of the following is not consistent with recent observations of the cosmic microwave background by Planckt?

• A)The universe is geometrically "flat" (in the four dimensions of spacetime).
• B)The matter density (both luminous and dark matter combined)in the universe is only about one-fourth of the critical density.
• C)Dark energy,whatever it is,represents the majority of the energy content of the universe.
• D)The universe is at least 20 billion years old.

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A name given to a chemical substance based on a standardized set of rules, allowing its unique identification.

Systematic Name

The name of a chemical substance based on a specific set of rules, allowing for its unique identification based on its structure.

Compound

A product of two or more elements chemically combined.

Compound

A substance made up of two or more elements chemically combined in a fixed proportion.