Life Appeared on Earth

question 24

Multiple Choice

Life appeared on Earth

• A) after most of Earth's history was already over.
• B) as one- celled organisms and remained so over most of Earth's history.
• C) the day before yesterday.
• D) very early in Earth's history.
• E) within the last 1 million years.

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Definitions:

Proposition

A declarative sentence that can be either true or false, but not both.

Content

The information, ideas, or themes contained within a work or communicated by a message.

Proposition Form

A symbolic representation of a proposition that illustrates the logical structure of the statement, often using variables to represent component propositions.

Ordering

The process of arranging or organizing items in a systematic sequence or in a particular manner.