Slash-and-burn, or swidden, agriculture has been practiced
A) only in semiarid savannas, where the sun is strong enough.
B) only in temperate regions where there are dry forests.
C) in Europe and North America until a few centuries ago, but today mainly in tropical regions.
D) in tropical regions until a few centuries ago, but today mainly in Europe and North America.
E) only in tropical areas, where the soils is not fertile enough for other forms of agriculture.
C
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Who was the first to offer a scientific explanation for how species changed?
a. Carolus Linnaeus b. Jean-Baptiste Lamarck c. Charles Lyell d. Charles Darwin e. Erasmus Darwin
The word “hats”
a. contains one morpheme. b. contains a bound morpheme. c. does not contain a bound morpheme. d. contains three morphemes. e. does not contain a morpheme.
define sexual dimorphism
What will be an ideal response?
If the Qd = (12 million) - (1 million × P) and QS = (2 million) + (1 million × P), the equilibrium price for the product is ________.
A) $5 B) $1 C) $12 D) $2