Approximately 29.3% of Big Bear City's population lives in a low income household, or a household with an annual income of less than $25,000. This is a high percentage of low income households for San Bernardino County and Riverside-San Bernardino-Ontario Metro.
Environmental geography is the branch of geography dealing with the dynamics of Earth 's surface features and their evolution through the actions of weathering and erosion. This type of study is linked to hydrology, environmental geology, and other facets of both geography and geology.
For other uses, see Region (disambiguation) . In geography, regions are areas broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and the environment (environmental geography). region has its own nature that could not be moved. The first nature is its natural environment (landform, climate, etc.). The second nature is its physical elements complex that were built by people in the past. The third nature is its socio-cultural context that could not be replaced by new immigrants.