human environment system

1. the study of the distribution and movement of water both on and below the Earth's surface, as well as the impact of human activity on water availability and conditions.
3. the movement of a mass of rock, debris, or earth down a slope.
5. a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area.
10. coupled human and natural system
11. the state whereby the human population rises to an extent exceeding the carrying capacity of the ecological setting
13. the process by which large numbers of people become permanently concentrated in relatively small areas, forming cities.
14. kind of landscape that is designed and created intentionally by man
15. they depend on the natural environment for their basic needs such as air, water and food

2. the process by which vegetation in drylands i.e. arid and semi-arid lands, such as grasslands or shrublands, decreases and eventually disappears.
4. type of landscape that is made up of a collection of landforms, such as mountains, hills, plains, and plateaus. Lakes, streams, soils (such as sand or clay), and natural vegetation
6. a rising and overflowing of a body of water especially onto normally dry land
7. all the visible features of an area of countryside or land, often considered in terms of their aesthetic appeal.
8. the complex of physical, chemical, and biotic factors (as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival
9. a kind of map which is a person's perception of a place
12. a set of things working together as parts of a mechanism or an interconnecting network