Stars Generally Exhibit

question 20

Multiple Choice

Stars generally exhibit:

• A) an absorption spectrum.
• B) a continuous spectrum.
• C) an emission spectrum.
• D) both emission and absorption spectra.

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Definitions:

Hydrocarbons

Organic compounds consisting entirely of hydrogen and carbon, found in fossil fuels and as a major component of petroleum and natural gas.

Low-Quality Energy

Energy that is dispersed and difficult to gather for useful work, such as heat energy at a low temperature.

Uranium-235

An isotope of uranium that is fissile, meaning it can sustain a nuclear chain reaction, used as fuel in nuclear reactors and weapons.

Conservation of Matter

A scientific law stating that matter cannot be created or destroyed in an isolated system, only transformed.