An agronomist.
Sedimentologist.
Agronomists.
An environmental scientist or an environmental chemist typically studies pollution, its effects on the environment, and methods to mitigate its impact. They may specialize in air, water, soil, or marine pollution.
The name for this type of scientist is a teuthologist
A scientist who studies animal life is a zoologist. There is no particular name for a scientist that specialises in platypuses.
The type of scientist that studies the environment is an enviromentologist.
what scientist studies hydrogen and oxygen
A botanist.
An Entomologist
A zoologist.
paleontologist
Meteorologists