Meteoroligist.
A person who studies fire is called a pyrologist or a fire scientist. They investigate the behavior, effects, and processes of fires, as well as develop strategies for fire prevention and management.
A physicist and a pathologist. There is no single term for someone that does both. A pathologist may specifically study the effects of gravity on vaccines
A person who studies the Earth's atmosphere is called an atmospheric scientist or meteorologist. They study the behavior and composition of the atmosphere to better understand weather patterns and climate change.
a person that studies gems is called a gemologist.
The Person Who studies about mamals , he is called mamalogist....
A person who studies animals is called a zoologist.
A person who studies pesticides is called a pesticide researcher or a pesticide scientist. They work to investigate the effects of pesticides on the environment, human health, and wildlife, as well as to develop new and safer pesticide products.
A person who studies the mind and behavior is called a psychologist.
A person who studies or writes history is called a historian.
A person who studies physics is called a physicist, a person who studies chemistry is called a chemist, and a person who studies biology is called a biologist.
Alligators of reptiles, so one who studies them is called a herpetologist.
A person who studies optometry is called an optometry student or an optometry student.