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What is the study of the physical and chemical properties of the Earth and its constituents?

  1. Hydrology

  2. Mineralogy

  3. Geology

  4. Stratigraphy

The correct answer is: Geology

Geology is the study of the physical and chemical properties of the Earth and its constituents, making it the correct answer. Hydrology (A) focuses on the study of water and its movement on Earth's surface, while mineralogy (B) specifically studies the physical and chemical properties of minerals. Stratigraphy (D) is the study of the layers of sedimentary rocks and their formation, which is only a small aspect of the larger field of geology.