Agricultural Engineering is concerned with the environment and our natural resources. Agricultural Engineers use their engineering and biological science knowledge to solve agricultural problems.
There are 2 kinds of surveyors: Topographical Surveyors establish the exact location of physical features (like rivers, rock formations, geysers, waterfalls etc) and the dimensions on the Earth and Engineering Surveyors collect all the relevant information on site of a proposed construction project and then maps out the area.
A Tractor Mechanic inspects, tests, maintains, services and repairs tractors or other large machinery. So if you would like to work on big engines and machinery, this might be the mechanical job you’re looking for!