Stream drainage patterns are determined by which of the following?
A) landscape characteristics only
B) variations in rock resistance only
C) regional steepness and relief only
D) climate only
E) climate, regional steepness and relief, landscape characteristics, and variations in rock resistance
Question 2
How is ocean acidification possibly linked to increased anthropogenic emissions of carbon dioxide (CO2)?
A) Atmospheric CO2 combines with atmospheric moisture forming a light carbonic acid forms (H2CO3), that is precipitated over the world's oceans.
B) Thermohaline circulation exchanges carbon between surface dissolved organic carbon and deep layers of dissolved inorganic carbon.
C) Increased warming results in glacial melt and more runoff of surface pollutants that can contribute to ocean acidification.
D) Oceans may absorb much of the concentrations of rising CO2. When dissolved CO2 mixes with saltwater, carbonic acid forms (H2CO3).
E) Increased photosynthetic activity in phytoplankton resulting from increased atmospheric CO2 concentrations results in acidification due to a complex chemical reaction during plant decay.
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