Question

what is studied by earth scientists who specialize in geochemistry?

Explanation:

Geochemistry is a subfield of Earth science that combines geology and chemistry. Earth scientists specializing in geochemistry study the chemical composition, structure, and processes of Earth's materials (like rocks, minerals, fluids) and the chemical interactions within Earth's systems (e.g., between the crust, mantle, hydrosphere, atmosphere). They analyze elements, isotopes, and chemical reactions to understand Earth's formation, evolution, resource formation (e.g., ores, fossil fuels), and environmental issues (e.g., pollution, climate change via chemical cycles).

Answer:

Earth scientists specializing in geochemistry study the chemical composition, structure, and processes of Earth’s materials (such as rocks, minerals, and fluids) and the chemical interactions within Earth’s systems (e.g., between the crust, mantle, hydrosphere, and atmosphere). This includes analyzing elements, isotopes, and chemical reactions to understand Earth’s formation, evolution, resource formation (e.g., ores, fossil fuels), and environmental issues (e.g., pollution, climate - related chemical cycles).