Examlex
Which of the following was NOT a problem that led to the overthrow of the Mongols in China?
Water Chemistry
The study of the chemical compositions, properties, and reactions of water, especially its behavior in natural and polluted environments.
Groundwater Chemistry
The study of the chemical characteristics and reactions of groundwater, including dissolved minerals, pollution, and the movement of contaminants.
Ground Surface
The top layer of the earth's crust that we walk on and interact with in our everyday lives.
Volcanic Gas
Gases emitted from a volcano, including water vapor, carbon dioxide, sulfur dioxide, hydrogen sulfide, and other volcanic gases.
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