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Across 4. where surface air moves toward the poles in an easterly direction 5. area over which an air mass forms 7. short-term variations in atmosphere phenomenon that interact and affect the environment and life on Earth 8. boundary between two air masses of differing densities 9. cutoff, as in a front where a warm air mass is caught between two cooler air masses 10. two global wind systems where air sinks, warms and returns to the equator is a westerly direwction

Down 1. the change that Earth's rotation causes in the motion of objects and that explains that explains how winds curve 2. global wind systems that are characterized by cold air 3. narrow wind band that occurs above large temperature contrasts and can flow as fast as 185 km/hr 6. a long-term average of variations in weather for a particular area 11. large volume of air that has the characteristics of the area over which it forms