What is the fundamental advantage of the ancient technique of terrace farming? What will be an ideal response?
It prevents the negative effects of runoff, such as rill and sheet erosion. Both soil and water are
conserved
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Today most rich countries have rates of natural population increase in excess of 2 percent
Indicate whether the statement is true or false.
Using the letters associated with the diagrams above, diagram ___ illustrates regional metamorphism
a. A b. B c. C
Jet streams
A) blow west to east in the Northern Hemisphere and east to west in the Southern Hemisphere. B) follow a straight path near the surface. C) straddle the equator and the poles, creating a north-south wind pattern. D) blow west to east in both hemispheres.
A sustained flow of electric charge requires
A. a potential difference. B. a resistance. C. electric polarization. D. an electric field.