1) Sheep originated in the Central Asian agricultural hearth over 9,000 years ago, but today are found in other places such as North America. This phenomenon is best explained by

A. diffusion.
B. breeding.
C. migration.
D. climate change.
E. transhumance.

2) Cotton, potatoes, and alpaca are agricultural products originating from which hearth?

A. East Asia
B. Central Asia
C. Southwest Asia
D. Sub-Saharan Africa
E. Latin America

3) Globally, the largest percent of people are engaged in which agricultural practice?

A. slash and burn
B. pastoral nomadism
C. intensive subsistence
D. shifting cultivation
E. hunting and gathering

4) The emergence of commercial agriculture was made possible by

A. the invention of the scythe.
B. the development of “miracle” wheat seed.
C. the manufacture of farm machinery.
D. the end of the second ice age.
E. the development of irrigation techniques.

5)

Which effects were seen in North America after 1900 as a result of agricultural changes in developed countries?

A. Most farms became corporate owned.
B. More small mixed-crop farms emerged.
C. More people were employed in agriculture.
D. Fewer but larger farms became common.
E. More pastoral nomadism was practiced.

6) Which best summarizes the main positive outcome of the Green Revolution?

A. Agricultural improvements of the Green Revolution provided sufficient food for the population of the twentieth century.
B. Fertilizers developed during the Green Revolution allowed improved crop yield for traditional breeds of crops.
C. Organic methods developed during the Green Revolution became affordable at scale, allowing a return to more natural food production.
D. Improvements to commercial agriculture during the Green Revolution allowed the reforestation of depleted agricultural lands.
E. New seed crops developed during the Green Revolution created a proliferation in the diversity of crops grown worldwide.

7) The main crops planted in intensive subsistence farming in tropical areas are

A. wheat, corn, peanuts, and potatoes.
B. rice, corn, millet, and sorghum.
C. beans, yams, sweet potatoes, and millet.
D. manioc, beans, banana, and papaya.
E. barley, wheat, hemp, and soybeans.

8) Clearing forest for crops, creating terraces for wet rice, and using irrigation are examples of

A. advances in agriculture developed during the second agricultural revolution.
B. agricultural methods for bioclimates with cold winters and dry summers.
C. declining agricultural practices since the advent of hydroponics and organic farming.
D. human alteration of the natural environment for food production.
E. the relationship between biodiversity and agricultural hearths and subsequent diffusion.