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ENVIRONMENTAL FACTORS

CHAPTER 2 NATURAL ENVIRONMENT AND HUMAN-MADE CHANGES TO ENVIRONMENT e245 Time-related changes Natural, regular or predictable temporal change. inclusion day/night and lunar cycles

e2450	e2451	e2458	e2459
Day/night cycles	Lunar cycles	Time-related changes, other specified	Time-related changes, unspecified
Natural, regular and predictable changes from day through to night and back to day, such as day, night, dawn and dusk.	Natural, regular and predictable changes of the moon's position in relation to the earth.

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