Biology

A toxicologist studies the adverse effects of chemical agents on biological systems.

A pharmacist works with drugs in their preparation and use to cure, control, and prevent illness.

The job of the hydrologist is to solve problems of water quality, quantity, and availability.

Health physics is devoted to protecting people and the environment from radiation hazards.

A geologist is a scientist that studies the earth—its origin, history, and structure.

An environmental scientist works to prevent contamination of the environment.

A lab technician is someone who has learned the practical details and special techniques that are required in a modern scientific laboratory.

An ecologist studies the interactions between organisms and their past, present, and future environments.