Dust Reddens Starlight Because

question 73

Multiple Choice

Dust reddens starlight because:

• A) it re-emits the light it absorbs at red wavelengths
• B) it emits mostly in the infrared due to its cold temperature
• C) it is made mostly of hydrogen, which produces the red H-alpha emission line
• D) it preferentially affects light at visible and shorter wavelengths
• E) it primarily moves away from Earth

---

Definitions:

Distinctively

In a way that is characteristic of a specific person, thing, or group and sets it apart from others.

Eyewitness

Refers to an individual who personally sees or experiences an event, and can therefore report their observations.

Smashed

In psychological experiments, particularly those related to memory and suggestion, "smashed" is often used to describe the influence of specific wording on participants' memory recall, such as their estimation of speed in a car accident.