The Process of Focusing Light on the Retina Is Performed

question 62

Multiple Choice

The process of focusing light on the retina is performed by the cornea and the:

• A) lens.
• B) iris.
• C) pupil.
• D) anterior chamber.

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Definitions:

Relative-Dating Principles

A set of techniques used in geology to determine the chronological order of events by analyzing rock layers and structures without determining their exact age.

Carbon-14 Ages

An age estimate of an organic material based on the measurement of the radioactivity of its carbon-14 content.

Granite Intrusion

The penetration of molten granite into pre-existing rocks in the Earth's crust, cooling and solidifying below the surface.

Cross-Cutting Relations

A geological principle stating that rocks disrupted or penetrated by an igneous intrusion or fault are older than the intrusion or fault itself.