There are so many fields that have not been studied in great depth. The least studied field is the one that hasn't been discovered yet.
Microbiology.
The mesosphere is the least studied layer of the atmosphere. It is located between the stratosphere and the thermosphere and is challenging to study due to its high altitude and limited accessibility for scientific instruments.
The least studied thing on Earth is the bottom of our oceans. There are some trenches that are so deep that we can't even get a submarine to the bottom yet.Once you leave the planet, pretty much everything is least studied because we haven't been anywhere except to the moon.
Sociology is not typically studied in the field of geography. Geography focuses on the physical and spatial aspects of the Earth, such as landforms, climate, and human-environment interactions, rather than the social dynamics studied in sociology.
Engineering is a field or subject to be studied, a doctorate is a qualification in a field of study.
he studied science
how societies continue to function
Carbonates are studied in chemistry. People do PhDs in this field. They are particularly studied in extractive metallurgy and geology.
If a geographer studied plants and animals, he or she would be a biologist, not a geographer.
she studied chemistry
Ben Franklin was a scientist who studied
historical perspective of economic treds