What Do the Broad Emission Lines in Quasar Spectra Tell

question 50

Multiple Choice

What do the broad emission lines in quasar spectra tell astronomers about these objects?

• A) They are very far away.
• B) They are moving away from us.
• C) They have rapid internal motions.
• D) They are very dense.
• E) They have few heavy elements.

---

Definitions:

Adolescents

Refers to individuals in the transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood.

Warning Signs

Early indicators or symptoms of potential health issues or dangers that suggest the need for caution or preventive measures.

Status Offenses

Actions that are considered violations of the law only because the individual is underage, such as truancy or underage drinking.

Ethnicity

Refers to the shared cultural practices, perspectives, and distinctions that set apart one group of people from another.