How does a rock formation with a a band of quartz wrapped around it in one direction and another band of quartz wrapped around the rock at a complete 90 degree difference form? could this be from pole reversal?

The most direct route from south america to asia is across the ocean.

What factors influenced brazil's current and future economic strength?

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity