The main source of the dissolved load in a stream is ________
A) material along the sides of the stream channel
B) material along the bottom of the stream channel
C) groundwater
D) cut bank soil
E) salt flats
C
Environmental & Atmospheric Sciences
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According to the following reaction, which molecule is acting as a base? H2O + NH3 ? OH- + NH4+
A) H2O B) NH3 C) OH- D) NH4+ E) none of the above
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Coal, a fossil fuel created by the remains of plants that grew millions of years ago, served as a substitute for fuel wood during the sixteenth century
Indicate whether the statement is true or false.
Environmental & Atmospheric Sciences
A decrease in stream power can cause all of the following except
A) channel deepening. B) a delta. C) an alluvial fan. D) migrating shorelines.
Environmental & Atmospheric Sciences
What is the average geothermal gradient in the crust?
A) 20°C/km B) 30°C/km C) 45°C/km D) 100°C/km
Environmental & Atmospheric Sciences