How Do Astronomers Currently Think the Amount of Detectable (Observable)

question 11

Multiple Choice

How do astronomers currently think the amount of detectable (observable) matter in the universe compares to the amount of dark matter and dark energy?

• A) the amount of detectable matter is about equal to the amount of dark matter & energy
• B) the amount of detectable matter is far greater than the amount of dark matter & energy
• C) the amount of detectable matter is far less than the amount of dark matter & energy
• D) the amount of detectable matter is about 1/10^th the amount of dark matter & energy
• E) there is no evidence for dark matter anywhere, so this is not a topic astronomers can make any estimates about
• Section 28.5: The Formation and Evolution of Galaxies and Structure in the Universe

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Definitions:

Population

The total number of individuals or inhabitants in a specific area or region at a certain time.

Principle Of Population

A theory suggesting that population growth is potentially exponential while the growth of the food supply or other resources is linear.

Subsistence

The minimum level of resources (food, shelter, clothing) that is required for individuals to survive.

Thomas Malthus

An English scholar and demographer known for his theory that population growth will always tend to outrun the food supply and that betterment of humankind is impossible without strict limits on reproduction.