A.) Geophysics :)
We define geology as the study of the Earth, the materials and processes, structure, and even the physics and chemistry that underlie them. Specific topics include plate tectonics, formation of minerals and rocks, weathering and erosion, earthquake hazards, volcanoes, crustal deformation, stream and river processes, and glacial processes.
It can’t be meteorology because that’s having to do with the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
It can’t be biology because it’s the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
It can’t be geography because that’s the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.
So it has to be geophysics! The science devoted to the study of the physical properties and processes of geological phenomena, including fields such as meteorology, oceanography, and seismology. :)
