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What branch of science studies matter and energy?

  1. Physics

  2. Chemistry

  3. Biology

  4. Geology

The correct answer is: Physics

Physics is the scientific study of matter and energy. While chemistry also involves the study of matter and energy, it typically focuses more on the chemical properties and reactions of substances. Biology primarily focuses on living organisms and their interactions. Geology, on the other hand, primarily deals with the physical structure and history of the Earth. Therefore, A is the best choice as it specifically pertains to studying matter and energy.