How Does the Observed Total Amount of Matter in the Universe,including

question 173

Multiple Choice

How does the observed total amount of matter in the universe,including dark matter,compare with the amount of matter required to just close the universe?

• A) The observed total amount of matter equals the amount needed, to within observational uncertainty.
• B) The observed total amount of matter is about 1/3 of the amount needed.
• C) The observed total amount of matter is about twice the amount needed.
• D) The observed total amount of matter is about 1/200 of the amount needed.

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Tip-Of-The-Tongue

A cognitive phenomenon where a person cannot fully retrieve a word but has a partial recall or feels that retrieval is imminent.

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Tools or techniques used to enhance or improve the ability to remember information.

Recall

The ability to retrieve and access information from one's memory that has been previously learned or experienced.

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The process or activity of writing or naming the letters of a word in the correct order.