A Star Cluster at a Great Distance from the Sun

question 138

Multiple Choice

A star cluster at a great distance from the Sun appears to be fainter than a similar star cluster at a closer distance.Part of this is the expected result from the inverse square law,but the distant cluster will also appear fainter than expected by distance alone because:

• A) the photons of light become "tired" and appear less bright as they travel.
• B) the cosmological redshift has moved some of the light into the infrared spectral region.
• C) star clusters are systematically smaller and hence less bright the farther they are from the galactic center and hence from the Sun.
• D) light is scattered and absorbed by interstellar dust and gas between distant clusters and Earth.

---

Definitions:

Education

The process of facilitating learning, or the acquisition of knowledge, skills, values, beliefs, and habits through various methods.

Non-Europeans

Individuals or peoples not originating from or associated with European countries or cultures.

Cultural Relativism

A perspective in anthropology and ethics that posits all cultures have their own values and norms, which are not inherently superior or inferior to those of other cultures.

Equal Value

The principle that all people, regardless of their personal characteristics, should be treated with the same respect and dignity, acknowledging their worth as individuals.