Author Question: Volcanic activity generally does NOT occur A) along sea-floor spreading centers. B) in ... (Read 58 times)

Chelseaamend · **on:** Jul 14, 2018

Volcanic activity generally does NOT occur

A) along sea-floor spreading centers.
B) in association with plutons.
C) along subduction boundaries.
D) in association with hot spots over plumes in the mantle.

Question 2

According to the figure above, within the mixing zone and thermocline, the average temperature and salinity

A) decrease with depth.
B) increase with depth.
C) remain fairly constant with depth.
D) decrease within the mixing zone, but increase the thermocline.