Geographers study the Earth and the distribution of its land, features, and inhabitants. (https://www.bls.gov/ooh/life-physical-and-social-science/geographers.htm)
A measure of the number of different species in an area. (FAO, 2010. Organic Agriculture Glossary. )
Note
Species diversity is determined not only by the number of species within a biological community, i.e. species richness, but also by the relative abundance of individuals in that community.
Geography is the study of the lands, features, inhabitants, and phenomena of Earth. (Dahlman, Carl; Renwick, William (2014). Introduction to Geography: People, Places & Environment (6th ed.). Pearson. ISBN 978-0137504510.)
Geologists are scientists who study the Earth: its history, nature, materials and processes. (https://www.americangeosciences.org/education/k5geosource/careers/geologist)
A secondary or incidental product deriving from a manufacturing process, a chemical reaction or a biochemical pathway, and is not the primary product or service being produced. (https://www.fao.org/faoterm/viewEntry/en/?entryId=84153)