Why is it so hard to say?
Land that contains relatively few people and large areas of open space
What is rural?
Land that contains buildings, roads, houses, and industry and is typically densely populated.
What is Urban land?
The Movement of people from rural areas to cities
What is urbanization?
Allowing more animals to graze in an area than the area can support.
What is overgrazing?
An organism that makes its own food.
What is a producer?
Land used to grow plants for food and fiber
What is cropland?
The mechanization of many jobs, which resulted in major population shifts from rural areas to urban areas.
What is the Industrial Revolution?
Roads, sewers, transportation systems, schools, and hospitals
What is infrastructure?
Planting trees to replace those cut down in a forest land
What is reforestation?
The energy source for most, but not all, ecosystems.
What is the sun?
Land that is used to graze livestock and wildlife
What is rangeland?
The percentage of the population in America that lives in urban areas.
What is 75%?
Increased temperature in a city due to generated and trapped heat
What is a heat island?
Clearing trees from an area without replacing them
What is deforestation?
The process of breaking down food to yield energy.
What is cellular respiration?
Land used for harvesting wood, wildlife, fish, nuts, and other resources
What is forestland?
The amount of population required to consider land Urban as opposed to rural land.
What is 2,500?
The rapid expansion of a city into the surrounding countryside
What is Urban Sprawl?
Strips of protected land that connect one preserve to another preserve
What are conservation corridors?
Multicellular organisms that must ingest food and whose cells have no cell wall.
What are animals?
Land used for recreation and scenic enjoyment, and for preserving native animal and plant communities and ecosystems
What are parks and preserves?
The main reason why people moved from rural areas to urban areas during the Industrial Revolution.
What are jobs?
A computerized system for sorting, manipulating, and viewing geographic data
What is a geographic information system?
An area protected from exploitation
What is wilderness?
Organisms that can transform unusable nitrogen in the atmosphere into chemical compounds containing nitrogen that can be used by other organisms.
What are nitrogen-fixing bacteria?