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Q10: Some see President Obama's policies aimed at
Q17: The "A" horizon or combined "O/A" horizons
Q23: Calcium bicarbonate produced in the chemical weathering
Q48: Shield volcanoes are_ than composite volcanoes.<br>A) taller<br>B)
Q52: Water is necessary for plants to survive.
Q64: Birds are thought to have evolved from_
Q89: Which of the below is cycled in
Q95: Net primary productivity is greatest on land
Q105: Which is among the natural means for
Q116: Which statement is TRUE?<br>A) Valley bottoms usually