Exam 17: Ecosystems and Biogeochemical Cycles
Exam 1: The Nature of Physical Geography72 Questions
Exam 2: Energy and Matter in the Atmosphere74 Questions
Exam 3: Atmospheric Motion75 Questions
Exam 4: Atmospheric Moisture75 Questions
Exam 5: Weather Systems and Severe Weather73 Questions
Exam 6: Atmosphere - Ocean - Crysophere Interactions 70 Questions
Exam 7: Climates Around the World74 Questions
Exam 8: Water Resources82 Questions
Exam 9: Understanding Landscapes138 Questions
Exam 10: Plate Tectonics and Regional Features139 Questions
Exam 11: Volcanoes, Deformation, and Earthquakes218 Questions
Exam 12: Weathering and Mass Wasting81 Questions
Exam 13: Streams and Flooding95 Questions
Exam 14: Glaciers and Glacial Landforms77 Questions
Exam 15: Coasts and Changing Sea Levels64 Questions
Exam 16: Soils73 Questions
Exam 17: Ecosystems and Biogeochemical Cycles76 Questions
Exam 18: Biomes76 Questions
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NOx reacts with what in the formation and intensification of particulate matter, which is linked to haze, decreasing visibility, and respiratory ailments?
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A likely scenario for causing the population trend shown in the diagram below is 

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Nitrates often used for gunpowders, explosives, and fertilizers (when combined with positive ions such as potassium, sodium, and calcium) have the chemical formula
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Which of the following is not a way in which biodiversity directly helps society?
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The form of nitrogen that comprises 78% of atmospheric mass and is necessary for biological processes, but unusable by plants is
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The diagram below reminds us that NOx reacts with water to produce nitric acid (HNO3), an important component of 

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Species that reproduce quickly and have offspring that are likely to die before reaching maturity are known as
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