* Geology: The study of the Earth's physical structure, composition, history, and processes. This includes rocks, minerals, landforms, and geological events.

* Meteorology: The study of the Earth's atmosphere, including weather patterns, climate, and atmospheric phenomena.

* Oceanography: The study of the Earth's oceans, including their physical, chemical, biological, and geological characteristics.

* Astronomy: While not strictly focused on Earth itself, astronomy plays a crucial role in understanding our planet's place in the solar system and the universe. It helps us understand Earth's formation, the history of the solar system, and the forces that influence our planet.

Therefore, all of the options are branches of Earth science.