During the Past Few Centuries

question 28

Multiple Choice

During the past few centuries,

• A)both average life expectancy and maximum lifespan have increased dramatically.
• B)average life expectancy has increased dramatically, while maximum lifespan has increased only a little.
• C)maximum lifespan has increased dramatically, while average life expectancy has increased only a little.
• D)both average life expectancy and maximum lifespan have decreased dramatically.

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Definitions:

Child-Directed Speech

A simplified and higher-pitched style of language that adults use when talking to young children, believed to facilitate language acquisition.

High Pitch

Sounds that are high in frequency, often described as sharp or squeaky, opposite to low pitch or bass sounds.

Simple Vocabulary

The basic and easy-to-understand words or terms that are often among the first learned by children or non-native speakers.

Short Sentences

Brief constructions of words that express a complete thought or idea, often used for clarity or impact in writing and speech.