What Are the Differences in the Logical and Physical Structures

question 38

Essay

What are the differences in the logical and physical structures of a database? How do these structures relate to the three levels of the database architecture?

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Definitions:

Carbon

A chemical element with symbol C, capable of forming many compounds including carbon dioxide and organic molecules.

Atmosphere

The layer of gases surrounding a planet or celestial body, gravitationally bound to it, and essential for many life forms.

Ocean

The ocean is a vast body of saltwater that covers more than 70% of the Earth's surface, important for climate regulation, transportation, and providing a habitat for countless species.

Biogeochemical Cycles

These are natural pathways by which essential elements of living matter are circulated through the biotic (living) and abiotic (non-living) components of the Earth.