10,000 years ago.
100,000 years ago.
1.1 million years ago.
1,000 years ago.
10 million years ago.
All of the above are forms of subsistence agriculture.
Include about 15 percent of the world's people.
Are found in isolated places in the world.
Are characterized by large concentrations of people.
Occur nearly everywhere but are especially common in Europe.
Are responsible for most of the environmental degradation of the planet.
Hunting and gathering
Lower population densities
Greater use of animal power
More diversified cropping
Greater use of land in rainforests
Preparing fields with a plow drawn by oxen
Flooding the plowed field with water
Growing seedlings in a nursery
Transplanting seedlings into the flooded field
All of these answers are correct.
Harvesting wet rice requires expensive machinery.
Practiced mostly in the tropics.
Part of agribusiness.
Owned by day laborers in less developed countries.
Found primarily in less developed countries.
Situated in densely populated locations.
Found primarily in more developed countries.
Transportation improvements and the rise of sea levels
Scientific advances, the reduction in the need for electronics, and
Ancient irrigation projects that can be refitted for modern farming
Transportation improvements, scientific advances, and electronics
Climate change, scientific advances, and transportation improvements
Push/pull economic factors, including the lack of opportunity in rural areas and higher-paying jobs in urban areas.
Urban sprawl, including the development of rings of suburbs and exurbs around major metropolitan areas, which required larger amounts of farm production.
Push/pull economic factors, including greater opportunities in rural areas and lower-paying jobs in urban areas.
The increase of populations in urban areas and the reduced population in rural areas.
The spread of disease and starvation in rural areas, which quickly reduced the populations of farmers.
Mixed crop and livestock farming
Distribute the workload of the crops and livestock so that farmers hardly need to work during the summer season.
Generate 90 percent of their income from the sale of livestock.
Create a system where crops provide food for livestock and the livestock provide manure for crop fertilization.
Circumvent market forces that determine the prices of livestock and crops.
Fruits and vegetables.
Autumn and harvested in summer.
Winter and harvested in spring.
Winter and harvested in autumn.
Spring and harvested in summer.
Spring and harvested in autumn.
Broad expanses of flat land along sea coasts.
Levels of livestock production with the mixed crop and livestock regions.