Techniques of intensive agriculture in pre-Columbian Mexico and the Andes included:
a. the use of horse-drawn plows.
b. long fallow periods to permit soil recovery.
c. shifting cultivation.
d. building raised fields in swamps and stepped terraces on hillsides.
Question 2
A system of cultivation in which plots are planted annually or semiannually and usually uses irrigation, natural fertilizers, and plows powered by animals is called:
a. extensive horticulture.
b. intensive agriculture.
c. intensive pastoralism.
d. extensive cultivation.
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