Each Year Approximately 45 Million Commuters Ride Subways and Trains

question 22

True/False

Each year approximately 45 million commuters ride subways and trains managed by urban transit agencies.

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Definitions:

Retina

The inner layer of the eye; contains light-sensing nerve cells.

Light Rays

Streams of photons that travel in a straight line, visible to the human eye when they are in the visible spectrum, and are fundamental in the phenomenon of sight.

Anatomy

The scientific term for the study of body structure.

Diseases

Medical conditions characterized by a dysfunction of the body or mind, often resulting in symptoms and impacting an individual's health.