Which geological processes explains why the ocean floors are so young?
a. sea floor spreading
b. subduction
c. volcanic activity
d. rift formation
e. mountain formation
b
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Use the soil texture triangle to name the following by its correct texture class (named on Figure 28.2):
a) 17% sand, 28% silt, 55% clay:
b) 31% sand, 55% silt, 14% clay:
Shield volcanoes have low slopes primarily because
A) the low viscosity of basaltic magma allows it to flow downhill for long distances. B) they never erupt from the same place twice. C) their abundant ash layers spread out large distances.
New species arise as the result of two processes, geographic and reproductive isolation. Explain how these processes work together to produce new species.
What will be an ideal response?
Both the gross domestic product (GDP) and genuine progress indicator (GPI) can be used as a measure of the wealth of a nation. Explain the difference between the GDP and GPI
What will be an ideal response?