Which of the Following Statements About Open Clusters Is True

question 100

Multiple Choice

Which of the following statements about open clusters is true?

• A)There is an approximately equal number of all types of stars in the cluster.
• B)All stars in the cluster have approximately the same mass.
• C)All stars in the cluster are approximately the same age.
• D)All stars in the cluster will evolve similarly.
• E)All stars in the cluster are approximately the same color.

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Definitions:

Molten Rock

Rock heated to a liquid state by extreme temperatures, found in the Earth's mantle and crust, also known as magma when underground and lava when it reaches the surface.

Underground Body

A general term for any substantial accumulation of material or geological structure located beneath the Earth's surface.

Pluton

A subsurface magma body or the mass of rock in which it solidifies; synonym: intrusion.

Batholith

A large mass of intrusive igneous rock believed to have solidified deep within the earth.