The lava at Kilauea volcano in Hawaii moves down slope at speeds of 1-10 meters per second; fast for a lava flow. What could account for this?
A) The lava is spewing out of the cone at fast speeds.
B) The lava is more thin.
C) The lava is very thick.
D) The slope is steep.
Answer: B
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In general, the farther a dairy farm is from a large urban area, the lower the percentage of output devoted to fresh milk. This occurs primarily because
A) land costs are lower farther from the urban area. B) milk is more perishable than butter. C) transport costs are greater farther from the urban area. D) the quality of soil is lower near an urban area.
What must be true of a rock unit has an inclusion?
A. The rock unit is older than the inclusion. B. The rock unit is the same age as the inclusion. C. The rock unit is younger than the inclusion.
Bile salts are involved in which of the following?
A) digestion B) excretion C) both a and b D) neither a nor b
What factor is most responsible for changing salinity values found in high latitudes?
A. fresh water input B. mixing action C. evaporation