Soil formation begins when physical, chemical, and biological processes called ____ break down bedrock into small pieces.
A. sedimentation
B. leaching
C. weathering
D. erosion
E. profiling
Answer: C
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As a comparison of Canada and Namibia shows, periphery countries have lower population densities than core countries
Indicate whether this statement is true or false.
What is the fundamental advantage of the ancient technique of terrace farming? What will be an ideal response?
Looking at global temperature distributions, it is seen that:
A) temperatures over land are colder than those over water at the same latitude in winter. B) temperatures increase poleward. C) the latitudinal temperature gradient is weakest in the hemisphere experiencing winter. D) it is difficult to explain the behavior of isotherms over the continents.
When agriculture involves endless hours of backbreaking work is it called
A) subsistence. B) peasant. C) labor-intensive. D) swidden. E) none of the above