Cosmology is the branch of astrophysics that focuses on the origin, evolution, and large-scale structure of the universe.

Astrophysics allows us to observe and analyze celestial objects in extreme conditions, such as black holes, neutron stars, and supernovae, which helps us gain insights into the fundamental forces that govern the universe.

Galactic Astronomy is the branch of astrophysics that focuses on the study of galaxies, their structure, composition, and evolution.

Astrophysics allows us to analyze the light emitted by stars and galaxies, which contains information about the chemical composition of these celestial objects and provides insights into the chemical evolution of the universe.

Sound waves are not a type of electromagnetic radiation and are not studied in astrophysics.

Astrophysics utilizes various methods, including observations, theoretical models, and analysis of stellar remnants, to gain insights into the formation and evolution of stars.

Quantum Mechanics is a branch of physics that deals with the behavior of matter and energy at the atomic and subatomic level, and is not specifically a branch of astrophysics.

Astrophysics utilizes various methods, including observations, theoretical models, and analysis of radiation and matter near black holes, to gain insights into their properties and behavior.

Electron microscopes are used to study objects at the atomic and subatomic level and are not specifically used in astrophysics.

Astrophysics utilizes various methods, including studying the chemical composition of celestial objects, analyzing conditions necessary for life, and searching for habitable exoplanets, to gain insights into the origin and evolution of life in the universe.

Bacteria are not astronomical objects and are not studied in astrophysics.

Astrophysics utilizes various methods, including mapping the distribution of galaxies, studying the cosmic microwave background radiation, and analyzing the properties of dark matter and dark energy, to gain insights into the large-scale structure of the universe.

Earthquakes are not astronomical events and are not studied in astrophysics.

Astrophysics utilizes various methods, including studying the effects of gravity on spacetime, analyzing the behavior of light and other electromagnetic radiation, and investigating the implications of Einstein's theory of general relativity, to gain insights into the relationship between space and time.

Biological models are not specifically used in astrophysics to study the universe.