Why Are the Youngest Galaxies That Are Seen in Distant

question 108

Multiple Choice

Why are the youngest galaxies that are seen in distant parts of the universe bluer and brighter than the older, closer galaxies observed?

• A) The red light has been partially absorbed by gas and dust between Earth and the galaxies.
• B) Young galaxies have more dust, and dust scatters blue light better than red.
• C) The light from the most distant galaxies has been bent by gravitational lenses and focused on Earth.
• D) Young galaxies have a burst of star formation that produces many hot, bright, blue stars.

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Definitions:

Declining Segment

A portion of a market that is experiencing a decrease in consumer demand or sales.

Inputs

Resources used in the production process to produce goods or services, including labor, raw materials, and capital.

Output

The total amount of goods or services produced by a company, industry, or economy over a given period.

Diseconomies of Scale

The phenomenon where production costs per unit increase as the scale of operation enlarges, often due to inefficiencies or increased complexity.