Approximately how much of center americans agricultural land is used for cattle grazing

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?

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

The magnitude of an earthquake is typically calculated according to the scale.           a. mercalli   b. fujita   c. richter   d. saffir-simpson