Observation

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

Technical communicators produce material that conveys scientific and technical information precisely, accurately, and clearly.

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

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

An environmental scientist works to prevent contamination of the environment.

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

A business manager directs or plans the work of others in order to run a business at a profit.