Tutor profile: Jim C.
Subject: Information Technology
How do relational databases differ, in structure and in use, from dimensional databases?
Relational databases are designed to store information in a rigorous way to maintain data integrity. Dimensional databases reorganize information, from relational databases and other sources, to make it faster and simpler to access.
Subject: World Geography
What are two reasons that preserving tropical rain forests are important in dealing with climate change?
The vegetation in rain forests, including but not limited to trees, consumes carbon dioxide from the air, which in turn reduces the "greenhouse" effect which contributes to atmospheric warming. Also, rain forests have more biodiversity than any other biome on land.
Please explain the values of logistics in the marketing of goods.
Effective logistics of goods means having the right goods at the right place at the right time, at the lowest cost. The ability to manage logistics effectively is a major competitive advantage,
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