The Temperature of the Ocean About Four Billion Years Ago

question 24

Multiple Choice

The temperature of the ocean about four billion years ago was ____.

• A)about the same as today's ocean
• B)much colder than that of today's ocean
• C)extremely hot compared with today's ocean
• D)only slightly warmer than today's ocean

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Definitions:

Figure and Ground

The concept of figure and ground refers to a type of perceptual grouping that is a crucial principle in visual perception, determining elements perceived as objects against a background.

Vestibular Senses

Refers to the perception of body balance and movement, mediated by the inner ear.

System Readjusts

The process by which a system modifies itself or its components to adapt to changes in its environment or operations.

Vestibular Sacs

Part of the inner ear involved in balance and spatial orientation, containing fluid that moves in response to changes in head positions.