Please Define the Following Key Terms

question 72

Short Answer

Please define the following key terms.
-Zheng He expeditions

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Definitions:

Natural Gas

A fossil fuel consisting mainly of methane, used primarily for heating, cooking, and electricity generation.

Heating Oil

A low viscosity, liquid petroleum product used as a fuel for furnaces or boilers in buildings.

Demand Curve

A graph depicting the relationship between the price of a good and the quantity demanded by consumers.

Quantity Demanded

The complete quantity of a product or service that buyers are ready and capable of buying at a certain price during a designated time frame.