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ABC RETAILER
Observe the ER diagram for the ABC Retailer:
This ER diagram will be used for the following questions citing ABC Retailer ER Diagram.
-How many columns will the relation PRODUCT have in the relational schema mapped from the ABC Retailer ER diagram?
Air Pollution
The presence of substances in the atmosphere that are harmful to human health, the environment or cause climate change.
Public Good
Goods that are non-excludable and non-rivalrous, meaning they can be used by many without diminishing the supply.
Clean Air
The state of the atmosphere when it is free from pollutants and substances harmful to living organisms and the environment.
Imperfect Information
A situation where all parties in a transaction do not have equal access to all relevant information.
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