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Past Exam for GEOS 1024 - Resources Geology with Hochella at Virginia Tech (VT)

Exam Information

Material Type:Exam 3
Professor:Hochella
Class:GEOS 1024 - Resources Geology
Subject:Geosciences
University:Virginia Polytechnic Institute And State University
Term:Spring 2004
Keywords:
  • Parent Rock
  • Following Statements
  • Agriculture
  • Green Revolution
  • Limitations
  • Troposphere
  • Concentration
  • Desertification
  • Food Production
  • Salinization
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Sample Document Text

Resource Geology 1024 (a.k.a. Sustaining the Earth) Test 3 Practice (April, 2004) Answers are at the end of this test. 1) Components in the A horizon of a typical soil include all of the following except weathered minerals 2) air 3) water 4) microorganisms 4) humus 5) unweathered minerals. 2) The A-horizon of a soil is commonly referred to as 1) topsoil 2) surface litter subsoil 4) parent rock 5) equivalent to the B horizon 6) equivalent to the O horizon, 7) none of the above is correct. 1) 3) 3) Soils typically take 1) weeks to form, 2) decades to form, 3) hundreds to many thousands of years to form, 4) millions of years to form, 5) billions of years to form. 4) The United States has already lost about _____ of its original topsoil. 2) one-sixth 3) one-fifth 4) one-quarter 5) one-tenth. 1) one-third 5) Modern industrialized agriculture today requires large inputs of 1) fossil fuels 2) water 3) inorganic fertilizers 4) all of these answers 5) 1 and 2 only 6) 2 and 3 only 7) 1 and 3 only 8) none of the abov...

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