In the 1980s, for the First Time in the 20^th

question 61

Multiple Choice

In the 1980s, for the first time in the 20^th century

• A) income gaps widened between the richest and the poorest Americans.
• B) middle-class incomes rose.
• C) the poor made economic gains.
• D) the economy was uniformly healthy.
• E) the majority of Americans were middle class.

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Definitions:

Sea Stars

Marine invertebrates known for their star shape and ability to regenerate limbs, part of the echinoderm family.

Dung Beetles

Beetles that feed on feces, playing important ecological roles such as nutrient recycling and soil aeration.

Keystone Species

Species that have a disproportionately large impact on their environment relative to their abundance, crucial for ecosystem structure and function.