Ecosystem-based timber harvesting uses methods that ________
A) are the most cost efficient in the short term
B) have the greatest impacts on forest ecosystems
C) leave seed-producing or mature trees uncut to provide for future forests
D) are very popular with timber companies
E) are ecologically harmless
C
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Fractures along which the rock has slipped relative to the other side are called
A) faults. B) cracks. C) joints. D) beds.
The depth beneath the surface of the ocean below which passing waves do not disturb the water
column is called:a. thermocline. b. wave base. c. fetch. d. wave depth. e. the ocean floor
The movement of sand parallel to the shore ________
A) is achieved by longshore currents B) may create spits C) is created by waves approaching at an oblique angle D) all of the above
Three types of plate boundaries
What will be an ideal response?