The correct answer is Plant and Animal fossils.

• Paleontology is the study of past life forms using fossils.
  • An example of paleontology is the branch of geology that studies dinosaurs.
  • The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals, and other organisms.

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• Volcanology, also spelled vulcanology, the discipline of the geologic sciences that is concerned with all aspects of volcanic phenomena.
  • Volcanology, A geologist uses a rock hammer to sample active pahoehoe lava for geochemical analysis on the Kilauea volcano, Hawaii.
• Meteorology is the study of the atmosphere, atmospheric phenomena, and atmospheric effects on our weather.
  • The atmosphere is the gaseous layer of the physical environment that surrounds a planet. ... Meteorology is a subdiscipline of the atmospheric sciences, a term that covers all studies of the atmosphere. 
• ​Petrology is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform them.
  • Mineralogy is the study of the chemistry, crystal structure, and physical properties of the mineral constituents of rocks.