If You Compared the Diameter of the Earth, Which Is

question 39

Multiple Choice

If you compared the diameter of the Earth, which is 13,000 km, to 1 second, then what unit of time would be equivalent to the size of the Milky Way, whose diameter is 10²¹ m, and what significant milestone would this time correspond to in our evolution?

• A) 2 million years, the length of time humans have existed on Earth
• B) 30,000 years, the length of time humans have lived in North America
• C) 400 years, the length of time humans have been exploring the skies with telescopes
• D) 4 billion years, the age of the Solar System
• E) 14 billion years, the age of the universe

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Definitions:

Scapegoating

The practice of singling out any party for unmerited negative treatment or blame as a way of distracting attention from the real causes of a problem.

Discrimination

The unfair or prejudicial treatment of different categories of people, especially on the grounds of race, age, or sex.

Prejudice

Preconceived opinion that is not based on reason or actual experience; often directed against people or a group based on their characteristics.

Stereotypes

Overgeneralized beliefs about a particular category of people, assuming that all members of that category share the same characteristics.