C Both domesticated plants and animals spread across the globe through contagious diffusion in early years by farmers and traders, and later by relocation diffusion through European exploration and colonialism. B Domesticated plants spread through wind-borne dispersal of seeds from their original hearth, expanding slowly until a vast region was covered with new plants. Which of the following best explains the diffusion of plants and animals from their hearths of domestication? A Animals were domesticated before plants and diffused rapidly from their hearth of domestication through contagious diffusion because they were mobile and moved easily from place to place. E Sheep production is an example of extensive agriculture that is declining because of an insufficient supply of open land, whereas poultry production continues to be practiced on small areas of land. C Sheep production is an example of extensive agriculture requiring large pastures, whereas poultry production is an example of intensive agriculture often practiced indoors D Sheep production and poultry production are both examples of intensive agriculture practiced on small areas of land but requiring different amounts of labor and capital. Which of the following best describes the differences in the agricultural practices and land use for these products? A Sheep production is an example of intensive agriculture requiring large amounts of fertilizer, whereas poultry production is an example of extensive agriculture practiced mainly in more developed countries B Sheep production and poultry production are both examples of extensive agriculture practiced on large areas of land, but requiring different climates. Sheep production in New Zealand and poultry production in Arkansas produce food animals for human consumption.
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