What soil texture supports the growth best in the majority of plants?
A) loam
B) an even mixture of clay, sand, and silt
C) silt
D) both A and B
B
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Zooplankton are the most numerous primary consumers in the ocean
Indicate whether the statement is true or false
Which of the following is true regarding day length?
A) The equator experiences at least six-hours difference in day length from winter to summer. B) Day length varies more at the equator than at higher latitudes. C) Nowhere on Earth does day length vary by as much as 24 hours. D) The poles have the smallest variation in summer and winter day lengths. E) The people living at 40° N or S experience about six-hours difference in daylength from winter to summer.
As the discharge of a stream increases, which of the following also happens?
A) Stream channels narrow, become shallower, and lose velocity. B) The rate of flow decreases. C) Channel width increases but channel depth decreases. D) Width, depth, and velocity all increase.
What is the definition of orogenesis?
A) Subduction of an oceanic plate beneath a continental plate B) Ionic exchange between calcium and oxygen C) Emplacement of metallic ores via hydrothermal metamorphism D) Processes that collectively form a mountain belt