The Milky Way and Andromeda Are on a Collision Course

question 4

Multiple Choice

The Milky Way and Andromeda are on a collision course.When will the initial collision happen?

• A) in about 4 million years
• B) in about 4 billion years
• C) in about 2.5 million years
• D) in about 400,000 years
• E) in about 13.7 billion years

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Definitions:

Technological Progressiveness

The rate at which an organization or society adopts and implements new technologies, enhancing productivity and innovation.

Industry Concentration Ratio

A metric that assesses the degree of market control held by the largest firms within an industry, indicating the level of competition.

Herfindahl Index

A measure used to calculate the size of firms in relation to the industry and to indicate the level of competition among them.

Retained Earnings

Profits that a company keeps or reinvests after dividends are paid out to shareholders, instead of distributing them completely.