Which of the following is not a step in the global nitrogen cycle?
A. Nitrogen fixation
B. Nitrification
C. Photosynthesis
D. Denitrification
E. Ammonification
Answer: C
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Global population is projected to be about ________ in 2050
A) 10 billion B) 7 billion C) 9 billion D) 11 billion E) 8 billion
Which sequence of minerals is NOT written in the proper order of crystallization as predicted by Bowen's reaction series?
a. olivine-augite-hornblende b. muscovite-quartz c. sodic plagioclase-calcic plagioclase d. calcic plagioclase-sodic plagioclase
Insolation is the source of energy that is ultimately responsible for heating the atmosphere and driving weather phenomena
Indicate whether the statement is true or false
Which of the following is the correct order of lake succession, from lowest to highest nutrient levels?
A) oligotrophic, mesotrophic, eutrophic B) eutrophic, oligotrophic, mesotrophic C) mesotrophic, eutrophic, oligotrophic D) oligotrophic, eutrophic, mesotrophic