Which of the following is the most correct definition of soil?
A. A complex of minerals that provide energy for the growth of plants
B. A complex mixture of organic matter, minerals, and living organisms
C. An elaborate mixture of organic matter and minerals
D. A mass of dead organic matter and detritus: dirt
E. All of these adequately describe soil
Answer: B
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Rocks with flat, wind-abraded surfaces are called
A. pediments B. ventifacts C. bajadas D. none of the preceding
What factors are needed in wind wave development? What occurs after these waves develop?
The Sun's altitude refers to
A) the subsolar point. B) the average insolation received at the thermopause when Earth is at its average distance from the Sun. C) the angle of the Sun above the horizon. D) how far the Sun is from Earth. E) the angular distance from the equator to the latitude at which direct overhead insolation is received.
The global recession of 2008 brought especially severe repercussions to economically weaker nations in the European Union, including all but which of the following?
A) Greece B) Ireland C) Italy D) France E) Spain